init

venv/lib/python3.11/site-packages/serial/__init__.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+#
+# This is a wrapper module for different platform implementations
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2017 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+import sys
+import importlib
+
+from serial.serialutil import *
+#~ SerialBase, SerialException, to_bytes, iterbytes
+
+__version__ = '3.4'
+
+VERSION = __version__
+
+# pylint: disable=wrong-import-position
+if sys.platform == 'cli':
+    from serial.serialcli import Serial
+else:
+    import os
+    # chose an implementation, depending on os
+    if os.name == 'nt':  # sys.platform == 'win32':
+        from serial.serialwin32 import Serial
+    elif os.name == 'posix':
+        from serial.serialposix import Serial, PosixPollSerial, VTIMESerial  # noqa
+    elif os.name == 'java':
+        from serial.serialjava import Serial
+    else:
+        raise ImportError("Sorry: no implementation for your platform ('{}') available".format(os.name))
+
+
+protocol_handler_packages = [
+    'serial.urlhandler',
+]
+
+
+def serial_for_url(url, *args, **kwargs):
+    """\
+    Get an instance of the Serial class, depending on port/url. The port is not
+    opened when the keyword parameter 'do_not_open' is true, by default it
+    is. All other parameters are directly passed to the __init__ method when
+    the port is instantiated.
+
+    The list of package names that is searched for protocol handlers is kept in
+    ``protocol_handler_packages``.
+
+    e.g. we want to support a URL ``foobar://``. A module
+    ``my_handlers.protocol_foobar`` is provided by the user. Then
+    ``protocol_handler_packages.append("my_handlers")`` would extend the search
+    path so that ``serial_for_url("foobar://"))`` would work.
+    """
+    # check and remove extra parameter to not confuse the Serial class
+    do_open = not kwargs.pop('do_not_open', False)
+    # the default is to use the native implementation
+    klass = Serial
+    try:
+        url_lowercase = url.lower()
+    except AttributeError:
+        # it's not a string, use default
+        pass
+    else:
+        # if it is an URL, try to import the handler module from the list of possible packages
+        if '://' in url_lowercase:
+            protocol = url_lowercase.split('://', 1)[0]
+            module_name = '.protocol_{}'.format(protocol)
+            for package_name in protocol_handler_packages:
+                try:
+                    importlib.import_module(package_name)
+                    handler_module = importlib.import_module(module_name, package_name)
+                except ImportError:
+                    continue
+                else:
+                    if hasattr(handler_module, 'serial_class_for_url'):
+                        url, klass = handler_module.serial_class_for_url(url)
+                    else:
+                        klass = handler_module.Serial
+                    break
+            else:
+                raise ValueError('invalid URL, protocol {!r} not known'.format(protocol))
+    # instantiate and open when desired
+    instance = klass(None, *args, **kwargs)
+    instance.port = url
+    if do_open:
+        instance.open()
+    return instance

venv/lib/python3.11/site-packages/serial/aio.py

@@ -0,0 +1,115 @@
+#!/usr/bin/env python3
+#
+# Python Serial Port Extension for Win32, Linux, BSD, Jython
+# module for serial IO for POSIX compatible systems, like Linux
+# see __init__.py
+#
+# (C) 2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+"""\
+Support asyncio with serial ports. EXPERIMENTAL
+
+Posix platforms only, Python 3.4+ only.
+
+Windows event loops can not wait for serial ports with the current
+implementation. It should be possible to get that working though.
+"""
+import asyncio
+import serial
+import logger
+
+
+class SerialTransport(asyncio.Transport):
+    def __init__(self, loop, protocol, serial_instance):
+        self._loop = loop
+        self._protocol = protocol
+        self.serial = serial_instance
+        self._closing = False
+        self._paused = False
+        # XXX how to support url handlers too
+        self.serial.timeout = 0
+        self.serial.nonblocking()
+        loop.call_soon(protocol.connection_made, self)
+        # only start reading when connection_made() has been called
+        loop.call_soon(loop.add_reader, self.serial.fd, self._read_ready)
+
+    def __repr__(self):
+        return '{self.__class__.__name__}({self._loop}, {self._protocol}, {self.serial})'.format(self=self)
+
+    def close(self):
+        if self._closing:
+            return
+        self._closing = True
+        self._loop.remove_reader(self.serial.fd)
+        self.serial.close()
+        self._loop.call_soon(self._protocol.connection_lost, None)
+
+    def _read_ready(self):
+        data = self.serial.read(1024)
+        if data:
+            self._protocol.data_received(data)
+
+    def write(self, data):
+        self.serial.write(data)
+
+    def can_write_eof(self):
+        return False
+
+    def pause_reading(self):
+        if self._closing:
+            raise RuntimeError('Cannot pause_reading() when closing')
+        if self._paused:
+            raise RuntimeError('Already paused')
+        self._paused = True
+        self._loop.remove_reader(self._sock_fd)
+        if self._loop.get_debug():
+            logger.debug("%r pauses reading", self)
+
+    def resume_reading(self):
+        if not self._paused:
+            raise RuntimeError('Not paused')
+        self._paused = False
+        if self._closing:
+            return
+        self._loop.add_reader(self._sock_fd, self._read_ready)
+        if self._loop.get_debug():
+            logger.debug("%r resumes reading", self)
+
+    #~ def set_write_buffer_limits(self, high=None, low=None):
+    #~ def get_write_buffer_size(self):
+    #~ def writelines(self, list_of_data):
+    #~ def write_eof(self):
+    #~ def abort(self):
+
+
+@asyncio.coroutine
+def create_serial_connection(loop, protocol_factory, *args, **kwargs):
+    ser = serial.Serial(*args, **kwargs)
+    protocol = protocol_factory()
+    transport = SerialTransport(loop, protocol, ser)
+    return (transport, protocol)
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# test
+if __name__ == '__main__':
+    class Output(asyncio.Protocol):
+        def connection_made(self, transport):
+            self.transport = transport
+            print('port opened', transport)
+            transport.serial.rts = False
+            transport.write(b'hello world\n')
+
+        def data_received(self, data):
+            print('data received', repr(data))
+            self.transport.close()
+
+        def connection_lost(self, exc):
+            print('port closed')
+            asyncio.get_event_loop().stop()
+
+    loop = asyncio.get_event_loop()
+    coro = create_serial_connection(loop, Output, '/dev/ttyUSB0', baudrate=115200)
+    loop.run_until_complete(coro)
+    loop.run_forever()
+    loop.close()

venv/lib/python3.11/site-packages/serial/rs485.py

@@ -0,0 +1,92 @@
+#!/usr/bin/env python
+
+# RS485 support
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+"""\
+The settings for RS485 are stored in a dedicated object that can be applied to
+serial ports (where supported).
+NOTE: Some implementations may only support a subset of the settings.
+"""
+
+import time
+import serial
+
+
+class RS485Settings(object):
+    def __init__(
+            self,
+            rts_level_for_tx=True,
+            rts_level_for_rx=False,
+            loopback=False,
+            delay_before_tx=None,
+            delay_before_rx=None):
+        self.rts_level_for_tx = rts_level_for_tx
+        self.rts_level_for_rx = rts_level_for_rx
+        self.loopback = loopback
+        self.delay_before_tx = delay_before_tx
+        self.delay_before_rx = delay_before_rx
+
+
+class RS485(serial.Serial):
+    """\
+    A subclass that replaces the write method with one that toggles RTS
+    according to the RS485 settings.
+
+    NOTE: This may work unreliably on some serial ports (control signals not
+          synchronized or delayed compared to data). Using delays may be
+          unreliable (varying times, larger than expected) as the OS may not
+          support very fine grained delays (no smaller than in the order of
+          tens of milliseconds).
+
+    NOTE: Some implementations support this natively. Better performance
+          can be expected when the native version is used.
+
+    NOTE: The loopback property is ignored by this implementation. The actual
+          behavior depends on the used hardware.
+
+    Usage:
+
+        ser = RS485(...)
+        ser.rs485_mode = RS485Settings(...)
+        ser.write(b'hello')
+    """
+
+    def __init__(self, *args, **kwargs):
+        super(RS485, self).__init__(*args, **kwargs)
+        self._alternate_rs485_settings = None
+
+    def write(self, b):
+        """Write to port, controlling RTS before and after transmitting."""
+        if self._alternate_rs485_settings is not None:
+            # apply level for TX and optional delay
+            self.setRTS(self._alternate_rs485_settings.rts_level_for_tx)
+            if self._alternate_rs485_settings.delay_before_tx is not None:
+                time.sleep(self._alternate_rs485_settings.delay_before_tx)
+            # write and wait for data to be written
+            super(RS485, self).write(b)
+            super(RS485, self).flush()
+            # optional delay and apply level for RX
+            if self._alternate_rs485_settings.delay_before_rx is not None:
+                time.sleep(self._alternate_rs485_settings.delay_before_rx)
+            self.setRTS(self._alternate_rs485_settings.rts_level_for_rx)
+        else:
+            super(RS485, self).write(b)
+
+    # redirect where the property stores the settings so that underlying Serial
+    # instance does not see them
+    @property
+    def rs485_mode(self):
+        """\
+        Enable RS485 mode and apply new settings, set to None to disable.
+        See serial.rs485.RS485Settings for more info about the value.
+        """
+        return self._alternate_rs485_settings
+
+    @rs485_mode.setter
+    def rs485_mode(self, rs485_settings):
+        self._alternate_rs485_settings = rs485_settings

venv/lib/python3.11/site-packages/serial/serialcli.py

@@ -0,0 +1,251 @@
+#! python
+#
+# Backend for .NET/Mono (IronPython), .NET >= 2
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2008-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+import System
+import System.IO.Ports
+from serial.serialutil import *
+
+# must invoke function with byte array, make a helper to convert strings
+# to byte arrays
+sab = System.Array[System.Byte]
+
+
+def as_byte_array(string):
+    return sab([ord(x) for x in string])  # XXX will require adaption when run with a 3.x compatible IronPython
+
+
+class Serial(SerialBase):
+    """Serial port implementation for .NET/Mono."""
+
+    BAUDRATES = (50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
+                 9600, 19200, 38400, 57600, 115200)
+
+    def open(self):
+        """\
+        Open port with current settings. This may throw a SerialException
+        if the port cannot be opened.
+        """
+        if self._port is None:
+            raise SerialException("Port must be configured before it can be used.")
+        if self.is_open:
+            raise SerialException("Port is already open.")
+        try:
+            self._port_handle = System.IO.Ports.SerialPort(self.portstr)
+        except Exception as msg:
+            self._port_handle = None
+            raise SerialException("could not open port %s: %s" % (self.portstr, msg))
+
+        # if RTS and/or DTR are not set before open, they default to True
+        if self._rts_state is None:
+            self._rts_state = True
+        if self._dtr_state is None:
+            self._dtr_state = True
+
+        self._reconfigure_port()
+        self._port_handle.Open()
+        self.is_open = True
+        if not self._dsrdtr:
+            self._update_dtr_state()
+        if not self._rtscts:
+            self._update_rts_state()
+        self.reset_input_buffer()
+
+    def _reconfigure_port(self):
+        """Set communication parameters on opened port."""
+        if not self._port_handle:
+            raise SerialException("Can only operate on a valid port handle")
+
+        #~ self._port_handle.ReceivedBytesThreshold = 1
+
+        if self._timeout is None:
+            self._port_handle.ReadTimeout = System.IO.Ports.SerialPort.InfiniteTimeout
+        else:
+            self._port_handle.ReadTimeout = int(self._timeout * 1000)
+
+        # if self._timeout != 0 and self._interCharTimeout is not None:
+            # timeouts = (int(self._interCharTimeout * 1000),) + timeouts[1:]
+
+        if self._write_timeout is None:
+            self._port_handle.WriteTimeout = System.IO.Ports.SerialPort.InfiniteTimeout
+        else:
+            self._port_handle.WriteTimeout = int(self._write_timeout * 1000)
+
+        # Setup the connection info.
+        try:
+            self._port_handle.BaudRate = self._baudrate
+        except IOError as e:
+            # catch errors from illegal baudrate settings
+            raise ValueError(str(e))
+
+        if self._bytesize == FIVEBITS:
+            self._port_handle.DataBits = 5
+        elif self._bytesize == SIXBITS:
+            self._port_handle.DataBits = 6
+        elif self._bytesize == SEVENBITS:
+            self._port_handle.DataBits = 7
+        elif self._bytesize == EIGHTBITS:
+            self._port_handle.DataBits = 8
+        else:
+            raise ValueError("Unsupported number of data bits: %r" % self._bytesize)
+
+        if self._parity == PARITY_NONE:
+            self._port_handle.Parity = getattr(System.IO.Ports.Parity, 'None')  # reserved keyword in Py3k
+        elif self._parity == PARITY_EVEN:
+            self._port_handle.Parity = System.IO.Ports.Parity.Even
+        elif self._parity == PARITY_ODD:
+            self._port_handle.Parity = System.IO.Ports.Parity.Odd
+        elif self._parity == PARITY_MARK:
+            self._port_handle.Parity = System.IO.Ports.Parity.Mark
+        elif self._parity == PARITY_SPACE:
+            self._port_handle.Parity = System.IO.Ports.Parity.Space
+        else:
+            raise ValueError("Unsupported parity mode: %r" % self._parity)
+
+        if self._stopbits == STOPBITS_ONE:
+            self._port_handle.StopBits = System.IO.Ports.StopBits.One
+        elif self._stopbits == STOPBITS_ONE_POINT_FIVE:
+            self._port_handle.StopBits = System.IO.Ports.StopBits.OnePointFive
+        elif self._stopbits == STOPBITS_TWO:
+            self._port_handle.StopBits = System.IO.Ports.StopBits.Two
+        else:
+            raise ValueError("Unsupported number of stop bits: %r" % self._stopbits)
+
+        if self._rtscts and self._xonxoff:
+            self._port_handle.Handshake = System.IO.Ports.Handshake.RequestToSendXOnXOff
+        elif self._rtscts:
+            self._port_handle.Handshake = System.IO.Ports.Handshake.RequestToSend
+        elif self._xonxoff:
+            self._port_handle.Handshake = System.IO.Ports.Handshake.XOnXOff
+        else:
+            self._port_handle.Handshake = getattr(System.IO.Ports.Handshake, 'None')   # reserved keyword in Py3k
+
+    #~ def __del__(self):
+        #~ self.close()
+
+    def close(self):
+        """Close port"""
+        if self.is_open:
+            if self._port_handle:
+                try:
+                    self._port_handle.Close()
+                except System.IO.Ports.InvalidOperationException:
+                    # ignore errors. can happen for unplugged USB serial devices
+                    pass
+                self._port_handle = None
+            self.is_open = False
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def in_waiting(self):
+        """Return the number of characters currently in the input buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        return self._port_handle.BytesToRead
+
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        # must use single byte reads as this is the only way to read
+        # without applying encodings
+        data = bytearray()
+        while size:
+            try:
+                data.append(self._port_handle.ReadByte())
+            except System.TimeoutException:
+                break
+            else:
+                size -= 1
+        return bytes(data)
+
+    def write(self, data):
+        """Output the given string over the serial port."""
+        if not self.is_open:
+            raise portNotOpenError
+        #~ if not isinstance(data, (bytes, bytearray)):
+            #~ raise TypeError('expected %s or bytearray, got %s' % (bytes, type(data)))
+        try:
+            # must call overloaded method with byte array argument
+            # as this is the only one not applying encodings
+            self._port_handle.Write(as_byte_array(data), 0, len(data))
+        except System.TimeoutException:
+            raise writeTimeoutError
+        return len(data)
+
+    def reset_input_buffer(self):
+        """Clear input buffer, discarding all that is in the buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        self._port_handle.DiscardInBuffer()
+
+    def reset_output_buffer(self):
+        """\
+        Clear output buffer, aborting the current output and
+        discarding all that is in the buffer.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        self._port_handle.DiscardOutBuffer()
+
+    def _update_break_state(self):
+        """
+        Set break: Controls TXD. When active, to transmitting is possible.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        self._port_handle.BreakState = bool(self._break_state)
+
+    def _update_rts_state(self):
+        """Set terminal status line: Request To Send"""
+        if not self.is_open:
+            raise portNotOpenError
+        self._port_handle.RtsEnable = bool(self._rts_state)
+
+    def _update_dtr_state(self):
+        """Set terminal status line: Data Terminal Ready"""
+        if not self.is_open:
+            raise portNotOpenError
+        self._port_handle.DtrEnable = bool(self._dtr_state)
+
+    @property
+    def cts(self):
+        """Read terminal status line: Clear To Send"""
+        if not self.is_open:
+            raise portNotOpenError
+        return self._port_handle.CtsHolding
+
+    @property
+    def dsr(self):
+        """Read terminal status line: Data Set Ready"""
+        if not self.is_open:
+            raise portNotOpenError
+        return self._port_handle.DsrHolding
+
+    @property
+    def ri(self):
+        """Read terminal status line: Ring Indicator"""
+        if not self.is_open:
+            raise portNotOpenError
+        #~ return self._port_handle.XXX
+        return False  # XXX an error would be better
+
+    @property
+    def cd(self):
+        """Read terminal status line: Carrier Detect"""
+        if not self.is_open:
+            raise portNotOpenError
+        return self._port_handle.CDHolding
+
+    # - - platform specific - - - -
+    # none

venv/lib/python3.11/site-packages/serial/serialjava.py

@@ -0,0 +1,249 @@
+#!jython
+#
+# Backend Jython with JavaComm
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2002-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+from serial.serialutil import *
+
+
+def my_import(name):
+    mod = __import__(name)
+    components = name.split('.')
+    for comp in components[1:]:
+        mod = getattr(mod, comp)
+    return mod
+
+
+def detect_java_comm(names):
+    """try given list of modules and return that imports"""
+    for name in names:
+        try:
+            mod = my_import(name)
+            mod.SerialPort
+            return mod
+        except (ImportError, AttributeError):
+            pass
+    raise ImportError("No Java Communications API implementation found")
+
+
+# Java Communications API implementations
+# http://mho.republika.pl/java/comm/
+
+comm = detect_java_comm([
+    'javax.comm',  # Sun/IBM
+    'gnu.io',      # RXTX
+])
+
+
+def device(portnumber):
+    """Turn a port number into a device name"""
+    enum = comm.CommPortIdentifier.getPortIdentifiers()
+    ports = []
+    while enum.hasMoreElements():
+        el = enum.nextElement()
+        if el.getPortType() == comm.CommPortIdentifier.PORT_SERIAL:
+            ports.append(el)
+    return ports[portnumber].getName()
+
+
+class Serial(SerialBase):
+    """\
+    Serial port class, implemented with Java Communications API and
+    thus usable with jython and the appropriate java extension.
+    """
+
+    def open(self):
+        """\
+        Open port with current settings. This may throw a SerialException
+        if the port cannot be opened.
+        """
+        if self._port is None:
+            raise SerialException("Port must be configured before it can be used.")
+        if self.is_open:
+            raise SerialException("Port is already open.")
+        if type(self._port) == type(''):      # strings are taken directly
+            portId = comm.CommPortIdentifier.getPortIdentifier(self._port)
+        else:
+            portId = comm.CommPortIdentifier.getPortIdentifier(device(self._port))     # numbers are transformed to a comport id obj
+        try:
+            self.sPort = portId.open("python serial module", 10)
+        except Exception as msg:
+            self.sPort = None
+            raise SerialException("Could not open port: %s" % msg)
+        self._reconfigurePort()
+        self._instream = self.sPort.getInputStream()
+        self._outstream = self.sPort.getOutputStream()
+        self.is_open = True
+
+    def _reconfigurePort(self):
+        """Set communication parameters on opened port."""
+        if not self.sPort:
+            raise SerialException("Can only operate on a valid port handle")
+
+        self.sPort.enableReceiveTimeout(30)
+        if self._bytesize == FIVEBITS:
+            jdatabits = comm.SerialPort.DATABITS_5
+        elif self._bytesize == SIXBITS:
+            jdatabits = comm.SerialPort.DATABITS_6
+        elif self._bytesize == SEVENBITS:
+            jdatabits = comm.SerialPort.DATABITS_7
+        elif self._bytesize == EIGHTBITS:
+            jdatabits = comm.SerialPort.DATABITS_8
+        else:
+            raise ValueError("unsupported bytesize: %r" % self._bytesize)
+
+        if self._stopbits == STOPBITS_ONE:
+            jstopbits = comm.SerialPort.STOPBITS_1
+        elif self._stopbits == STOPBITS_ONE_POINT_FIVE:
+            jstopbits = comm.SerialPort.STOPBITS_1_5
+        elif self._stopbits == STOPBITS_TWO:
+            jstopbits = comm.SerialPort.STOPBITS_2
+        else:
+            raise ValueError("unsupported number of stopbits: %r" % self._stopbits)
+
+        if self._parity == PARITY_NONE:
+            jparity = comm.SerialPort.PARITY_NONE
+        elif self._parity == PARITY_EVEN:
+            jparity = comm.SerialPort.PARITY_EVEN
+        elif self._parity == PARITY_ODD:
+            jparity = comm.SerialPort.PARITY_ODD
+        elif self._parity == PARITY_MARK:
+            jparity = comm.SerialPort.PARITY_MARK
+        elif self._parity == PARITY_SPACE:
+            jparity = comm.SerialPort.PARITY_SPACE
+        else:
+            raise ValueError("unsupported parity type: %r" % self._parity)
+
+        jflowin = jflowout = 0
+        if self._rtscts:
+            jflowin |= comm.SerialPort.FLOWCONTROL_RTSCTS_IN
+            jflowout |= comm.SerialPort.FLOWCONTROL_RTSCTS_OUT
+        if self._xonxoff:
+            jflowin |= comm.SerialPort.FLOWCONTROL_XONXOFF_IN
+            jflowout |= comm.SerialPort.FLOWCONTROL_XONXOFF_OUT
+
+        self.sPort.setSerialPortParams(self._baudrate, jdatabits, jstopbits, jparity)
+        self.sPort.setFlowControlMode(jflowin | jflowout)
+
+        if self._timeout >= 0:
+            self.sPort.enableReceiveTimeout(int(self._timeout*1000))
+        else:
+            self.sPort.disableReceiveTimeout()
+
+    def close(self):
+        """Close port"""
+        if self.is_open:
+            if self.sPort:
+                self._instream.close()
+                self._outstream.close()
+                self.sPort.close()
+                self.sPort = None
+            self.is_open = False
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def in_waiting(self):
+        """Return the number of characters currently in the input buffer."""
+        if not self.sPort:
+            raise portNotOpenError
+        return self._instream.available()
+
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.sPort:
+            raise portNotOpenError
+        read = bytearray()
+        if size > 0:
+            while len(read) < size:
+                x = self._instream.read()
+                if x == -1:
+                    if self.timeout >= 0:
+                        break
+                else:
+                    read.append(x)
+        return bytes(read)
+
+    def write(self, data):
+        """Output the given string over the serial port."""
+        if not self.sPort:
+            raise portNotOpenError
+        if not isinstance(data, (bytes, bytearray)):
+            raise TypeError('expected %s or bytearray, got %s' % (bytes, type(data)))
+        self._outstream.write(data)
+        return len(data)
+
+    def reset_input_buffer(self):
+        """Clear input buffer, discarding all that is in the buffer."""
+        if not self.sPort:
+            raise portNotOpenError
+        self._instream.skip(self._instream.available())
+
+    def reset_output_buffer(self):
+        """\
+        Clear output buffer, aborting the current output and
+        discarding all that is in the buffer.
+        """
+        if not self.sPort:
+            raise portNotOpenError
+        self._outstream.flush()
+
+    def send_break(self, duration=0.25):
+        """Send break condition. Timed, returns to idle state after given duration."""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.sendBreak(duration*1000.0)
+
+    def _update_break_state(self):
+        """Set break: Controls TXD. When active, to transmitting is possible."""
+        if self.fd is None:
+            raise portNotOpenError
+        raise SerialException("The _update_break_state function is not implemented in java.")
+
+    def _update_rts_state(self):
+        """Set terminal status line: Request To Send"""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.setRTS(self._rts_state)
+
+    def _update_dtr_state(self):
+        """Set terminal status line: Data Terminal Ready"""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.setDTR(self._dtr_state)
+
+    @property
+    def cts(self):
+        """Read terminal status line: Clear To Send"""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.isCTS()
+
+    @property
+    def dsr(self):
+        """Read terminal status line: Data Set Ready"""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.isDSR()
+
+    @property
+    def ri(self):
+        """Read terminal status line: Ring Indicator"""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.isRI()
+
+    @property
+    def cd(self):
+        """Read terminal status line: Carrier Detect"""
+        if not self.sPort:
+            raise portNotOpenError
+        self.sPort.isCD()

venv/lib/python3.11/site-packages/serial/serialposix.py

@@ -0,0 +1,811 @@
+#!/usr/bin/env python
+#
+# backend for serial IO for POSIX compatible systems, like Linux, OSX
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2016 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# parts based on code from Grant B. Edwards  <grante@visi.com>:
+#  ftp://ftp.visi.com/users/grante/python/PosixSerial.py
+#
+# references: http://www.easysw.com/~mike/serial/serial.html
+
+# Collection of port names (was previously used by number_to_device which was
+# removed.
+# - Linux                   /dev/ttyS%d (confirmed)
+# - cygwin/win32            /dev/com%d (confirmed)
+# - openbsd (OpenBSD)       /dev/cua%02d
+# - bsd*, freebsd*          /dev/cuad%d
+# - darwin (OS X)           /dev/cuad%d
+# - netbsd                  /dev/dty%02d (NetBSD 1.6 testing by Erk)
+# - irix (IRIX)             /dev/ttyf%d (partially tested) names depending on flow control
+# - hp (HP-UX)              /dev/tty%dp0 (not tested)
+# - sunos (Solaris/SunOS)   /dev/tty%c (letters, 'a'..'z') (confirmed)
+# - aix (AIX)               /dev/tty%d
+
+
+# pylint: disable=abstract-method
+import errno
+import fcntl
+import os
+import select
+import struct
+import sys
+import termios
+
+import serial
+from serial.serialutil import SerialBase, SerialException, to_bytes, \
+    portNotOpenError, writeTimeoutError, Timeout
+
+
+class PlatformSpecificBase(object):
+    BAUDRATE_CONSTANTS = {}
+
+    def _set_special_baudrate(self, baudrate):
+        raise NotImplementedError('non-standard baudrates are not supported on this platform')
+
+    def _set_rs485_mode(self, rs485_settings):
+        raise NotImplementedError('RS485 not supported on this platform')
+
+
+# some systems support an extra flag to enable the two in POSIX unsupported
+# paritiy settings for MARK and SPACE
+CMSPAR = 0  # default, for unsupported platforms, override below
+
+# try to detect the OS so that a device can be selected...
+# this code block should supply a device() and set_special_baudrate() function
+# for the platform
+plat = sys.platform.lower()
+
+if plat[:5] == 'linux':    # Linux (confirmed)  # noqa
+    import array
+
+    # extra termios flags
+    CMSPAR = 0o10000000000  # Use "stick" (mark/space) parity
+
+    # baudrate ioctls
+    TCGETS2 = 0x802C542A
+    TCSETS2 = 0x402C542B
+    BOTHER = 0o010000
+
+    # RS485 ioctls
+    TIOCGRS485 = 0x542E
+    TIOCSRS485 = 0x542F
+    SER_RS485_ENABLED = 0b00000001
+    SER_RS485_RTS_ON_SEND = 0b00000010
+    SER_RS485_RTS_AFTER_SEND = 0b00000100
+    SER_RS485_RX_DURING_TX = 0b00010000
+
+    class PlatformSpecific(PlatformSpecificBase):
+        BAUDRATE_CONSTANTS = {
+            0:       0o000000,  # hang up
+            50:      0o000001,
+            75:      0o000002,
+            110:     0o000003,
+            134:     0o000004,
+            150:     0o000005,
+            200:     0o000006,
+            300:     0o000007,
+            600:     0o000010,
+            1200:    0o000011,
+            1800:    0o000012,
+            2400:    0o000013,
+            4800:    0o000014,
+            9600:    0o000015,
+            19200:   0o000016,
+            38400:   0o000017,
+            57600:   0o010001,
+            115200:  0o010002,
+            230400:  0o010003,
+            460800:  0o010004,
+            500000:  0o010005,
+            576000:  0o010006,
+            921600:  0o010007,
+            1000000: 0o010010,
+            1152000: 0o010011,
+            1500000: 0o010012,
+            2000000: 0o010013,
+            2500000: 0o010014,
+            3000000: 0o010015,
+            3500000: 0o010016,
+            4000000: 0o010017
+        }
+
+        def _set_special_baudrate(self, baudrate):
+            # right size is 44 on x86_64, allow for some growth
+            buf = array.array('i', [0] * 64)
+            try:
+                # get serial_struct
+                fcntl.ioctl(self.fd, TCGETS2, buf)
+                # set custom speed
+                buf[2] &= ~termios.CBAUD
+                buf[2] |= BOTHER
+                buf[9] = buf[10] = baudrate
+
+                # set serial_struct
+                fcntl.ioctl(self.fd, TCSETS2, buf)
+            except IOError as e:
+                raise ValueError('Failed to set custom baud rate ({}): {}'.format(baudrate, e))
+
+        def _set_rs485_mode(self, rs485_settings):
+            buf = array.array('i', [0] * 8)  # flags, delaytx, delayrx, padding
+            try:
+                fcntl.ioctl(self.fd, TIOCGRS485, buf)
+                buf[0] |= SER_RS485_ENABLED
+                if rs485_settings is not None:
+                    if rs485_settings.loopback:
+                        buf[0] |= SER_RS485_RX_DURING_TX
+                    else:
+                        buf[0] &= ~SER_RS485_RX_DURING_TX
+                    if rs485_settings.rts_level_for_tx:
+                        buf[0] |= SER_RS485_RTS_ON_SEND
+                    else:
+                        buf[0] &= ~SER_RS485_RTS_ON_SEND
+                    if rs485_settings.rts_level_for_rx:
+                        buf[0] |= SER_RS485_RTS_AFTER_SEND
+                    else:
+                        buf[0] &= ~SER_RS485_RTS_AFTER_SEND
+                    if rs485_settings.delay_before_tx is not None:
+                        buf[1] = int(rs485_settings.delay_before_tx * 1000)
+                    if rs485_settings.delay_before_rx is not None:
+                        buf[2] = int(rs485_settings.delay_before_rx * 1000)
+                else:
+                    buf[0] = 0  # clear SER_RS485_ENABLED
+                fcntl.ioctl(self.fd, TIOCSRS485, buf)
+            except IOError as e:
+                raise ValueError('Failed to set RS485 mode: {}'.format(e))
+
+
+elif plat == 'cygwin':       # cygwin/win32 (confirmed)
+
+    class PlatformSpecific(PlatformSpecificBase):
+        BAUDRATE_CONSTANTS = {
+            128000: 0x01003,
+            256000: 0x01005,
+            500000: 0x01007,
+            576000: 0x01008,
+            921600: 0x01009,
+            1000000: 0x0100a,
+            1152000: 0x0100b,
+            1500000: 0x0100c,
+            2000000: 0x0100d,
+            2500000: 0x0100e,
+            3000000: 0x0100f
+        }
+
+
+elif plat[:6] == 'darwin':   # OS X
+    import array
+    IOSSIOSPEED = 0x80045402  # _IOW('T', 2, speed_t)
+
+    class PlatformSpecific(PlatformSpecificBase):
+        osx_version = os.uname()[2].split('.')
+        # Tiger or above can support arbitrary serial speeds
+        if int(osx_version[0]) >= 8:
+            def _set_special_baudrate(self, baudrate):
+                # use IOKit-specific call to set up high speeds
+                buf = array.array('i', [baudrate])
+                fcntl.ioctl(self.fd, IOSSIOSPEED, buf, 1)
+
+elif plat[:3] == 'bsd' or \
+     plat[:7] == 'freebsd' or \
+     plat[:6] == 'netbsd' or \
+     plat[:7] == 'openbsd':
+
+    class ReturnBaudrate(object):
+        def __getitem__(self, key):
+            return key
+
+    class PlatformSpecific(PlatformSpecificBase):
+        # Only tested on FreeBSD:
+        # The baud rate may be passed in as
+        # a literal value.
+        BAUDRATE_CONSTANTS = ReturnBaudrate()
+
+else:
+    class PlatformSpecific(PlatformSpecificBase):
+        pass
+
+
+# load some constants for later use.
+# try to use values from termios, use defaults from linux otherwise
+TIOCMGET = getattr(termios, 'TIOCMGET', 0x5415)
+TIOCMBIS = getattr(termios, 'TIOCMBIS', 0x5416)
+TIOCMBIC = getattr(termios, 'TIOCMBIC', 0x5417)
+TIOCMSET = getattr(termios, 'TIOCMSET', 0x5418)
+
+# TIOCM_LE = getattr(termios, 'TIOCM_LE', 0x001)
+TIOCM_DTR = getattr(termios, 'TIOCM_DTR', 0x002)
+TIOCM_RTS = getattr(termios, 'TIOCM_RTS', 0x004)
+# TIOCM_ST = getattr(termios, 'TIOCM_ST', 0x008)
+# TIOCM_SR = getattr(termios, 'TIOCM_SR', 0x010)
+
+TIOCM_CTS = getattr(termios, 'TIOCM_CTS', 0x020)
+TIOCM_CAR = getattr(termios, 'TIOCM_CAR', 0x040)
+TIOCM_RNG = getattr(termios, 'TIOCM_RNG', 0x080)
+TIOCM_DSR = getattr(termios, 'TIOCM_DSR', 0x100)
+TIOCM_CD = getattr(termios, 'TIOCM_CD', TIOCM_CAR)
+TIOCM_RI = getattr(termios, 'TIOCM_RI', TIOCM_RNG)
+# TIOCM_OUT1 = getattr(termios, 'TIOCM_OUT1', 0x2000)
+# TIOCM_OUT2 = getattr(termios, 'TIOCM_OUT2', 0x4000)
+if hasattr(termios, 'TIOCINQ'):
+    TIOCINQ = termios.TIOCINQ
+else:
+    TIOCINQ = getattr(termios, 'FIONREAD', 0x541B)
+TIOCOUTQ = getattr(termios, 'TIOCOUTQ', 0x5411)
+
+TIOCM_zero_str = struct.pack('I', 0)
+TIOCM_RTS_str = struct.pack('I', TIOCM_RTS)
+TIOCM_DTR_str = struct.pack('I', TIOCM_DTR)
+
+TIOCSBRK = getattr(termios, 'TIOCSBRK', 0x5427)
+TIOCCBRK = getattr(termios, 'TIOCCBRK', 0x5428)
+
+
+class Serial(SerialBase, PlatformSpecific):
+    """\
+    Serial port class POSIX implementation. Serial port configuration is
+    done with termios and fcntl. Runs on Linux and many other Un*x like
+    systems.
+    """
+
+    def open(self):
+        """\
+        Open port with current settings. This may throw a SerialException
+        if the port cannot be opened."""
+        if self._port is None:
+            raise SerialException("Port must be configured before it can be used.")
+        if self.is_open:
+            raise SerialException("Port is already open.")
+        self.fd = None
+        # open
+        try:
+            self.fd = os.open(self.portstr, os.O_RDWR | os.O_NOCTTY | os.O_NONBLOCK)
+        except OSError as msg:
+            self.fd = None
+            raise SerialException(msg.errno, "could not open port {}: {}".format(self._port, msg))
+        #~ fcntl.fcntl(self.fd, fcntl.F_SETFL, 0)  # set blocking
+
+        try:
+            self._reconfigure_port(force_update=True)
+        except:
+            try:
+                os.close(self.fd)
+            except:
+                # ignore any exception when closing the port
+                # also to keep original exception that happened when setting up
+                pass
+            self.fd = None
+            raise
+        else:
+            self.is_open = True
+        try:
+            if not self._dsrdtr:
+                self._update_dtr_state()
+            if not self._rtscts:
+                self._update_rts_state()
+        except IOError as e:
+            if e.errno in (errno.EINVAL, errno.ENOTTY):
+                # ignore Invalid argument and Inappropriate ioctl
+                pass
+            else:
+                raise
+        self.reset_input_buffer()
+        self.pipe_abort_read_r, self.pipe_abort_read_w = os.pipe()
+        self.pipe_abort_write_r, self.pipe_abort_write_w = os.pipe()
+        fcntl.fcntl(self.pipe_abort_read_r, fcntl.F_SETFL, os.O_NONBLOCK)
+        fcntl.fcntl(self.pipe_abort_write_r, fcntl.F_SETFL, os.O_NONBLOCK)
+
+    def _reconfigure_port(self, force_update=False):
+        """Set communication parameters on opened port."""
+        if self.fd is None:
+            raise SerialException("Can only operate on a valid file descriptor")
+
+        # if exclusive lock is requested, create it before we modify anything else
+        if self._exclusive is not None:
+            if self._exclusive:
+                try:
+                    fcntl.flock(self.fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
+                except IOError as msg:
+                    raise SerialException(msg.errno, "Could not exclusively lock port {}: {}".format(self._port, msg))
+            else:
+                fcntl.flock(self.fd, fcntl.LOCK_UN)
+
+        custom_baud = None
+
+        vmin = vtime = 0                # timeout is done via select
+        if self._inter_byte_timeout is not None:
+            vmin = 1
+            vtime = int(self._inter_byte_timeout * 10)
+        try:
+            orig_attr = termios.tcgetattr(self.fd)
+            iflag, oflag, cflag, lflag, ispeed, ospeed, cc = orig_attr
+        except termios.error as msg:      # if a port is nonexistent but has a /dev file, it'll fail here
+            raise SerialException("Could not configure port: {}".format(msg))
+        # set up raw mode / no echo / binary
+        cflag |= (termios.CLOCAL | termios.CREAD)
+        lflag &= ~(termios.ICANON | termios.ECHO | termios.ECHOE |
+                   termios.ECHOK | termios.ECHONL |
+                   termios.ISIG | termios.IEXTEN)  # |termios.ECHOPRT
+        for flag in ('ECHOCTL', 'ECHOKE'):  # netbsd workaround for Erk
+            if hasattr(termios, flag):
+                lflag &= ~getattr(termios, flag)
+
+        oflag &= ~(termios.OPOST | termios.ONLCR | termios.OCRNL)
+        iflag &= ~(termios.INLCR | termios.IGNCR | termios.ICRNL | termios.IGNBRK)
+        if hasattr(termios, 'IUCLC'):
+            iflag &= ~termios.IUCLC
+        if hasattr(termios, 'PARMRK'):
+            iflag &= ~termios.PARMRK
+
+        # setup baud rate
+        try:
+            ispeed = ospeed = getattr(termios, 'B{}'.format(self._baudrate))
+        except AttributeError:
+            try:
+                ispeed = ospeed = self.BAUDRATE_CONSTANTS[self._baudrate]
+            except KeyError:
+                #~ raise ValueError('Invalid baud rate: %r' % self._baudrate)
+                # may need custom baud rate, it isn't in our list.
+                ispeed = ospeed = getattr(termios, 'B38400')
+                try:
+                    custom_baud = int(self._baudrate)  # store for later
+                except ValueError:
+                    raise ValueError('Invalid baud rate: {!r}'.format(self._baudrate))
+                else:
+                    if custom_baud < 0:
+                        raise ValueError('Invalid baud rate: {!r}'.format(self._baudrate))
+
+        # setup char len
+        cflag &= ~termios.CSIZE
+        if self._bytesize == 8:
+            cflag |= termios.CS8
+        elif self._bytesize == 7:
+            cflag |= termios.CS7
+        elif self._bytesize == 6:
+            cflag |= termios.CS6
+        elif self._bytesize == 5:
+            cflag |= termios.CS5
+        else:
+            raise ValueError('Invalid char len: {!r}'.format(self._bytesize))
+        # setup stop bits
+        if self._stopbits == serial.STOPBITS_ONE:
+            cflag &= ~(termios.CSTOPB)
+        elif self._stopbits == serial.STOPBITS_ONE_POINT_FIVE:
+            cflag |= (termios.CSTOPB)  # XXX same as TWO.. there is no POSIX support for 1.5
+        elif self._stopbits == serial.STOPBITS_TWO:
+            cflag |= (termios.CSTOPB)
+        else:
+            raise ValueError('Invalid stop bit specification: {!r}'.format(self._stopbits))
+        # setup parity
+        iflag &= ~(termios.INPCK | termios.ISTRIP)
+        if self._parity == serial.PARITY_NONE:
+            cflag &= ~(termios.PARENB | termios.PARODD | CMSPAR)
+        elif self._parity == serial.PARITY_EVEN:
+            cflag &= ~(termios.PARODD | CMSPAR)
+            cflag |= (termios.PARENB)
+        elif self._parity == serial.PARITY_ODD:
+            cflag &= ~CMSPAR
+            cflag |= (termios.PARENB | termios.PARODD)
+        elif self._parity == serial.PARITY_MARK and CMSPAR:
+            cflag |= (termios.PARENB | CMSPAR | termios.PARODD)
+        elif self._parity == serial.PARITY_SPACE and CMSPAR:
+            cflag |= (termios.PARENB | CMSPAR)
+            cflag &= ~(termios.PARODD)
+        else:
+            raise ValueError('Invalid parity: {!r}'.format(self._parity))
+        # setup flow control
+        # xonxoff
+        if hasattr(termios, 'IXANY'):
+            if self._xonxoff:
+                iflag |= (termios.IXON | termios.IXOFF)  # |termios.IXANY)
+            else:
+                iflag &= ~(termios.IXON | termios.IXOFF | termios.IXANY)
+        else:
+            if self._xonxoff:
+                iflag |= (termios.IXON | termios.IXOFF)
+            else:
+                iflag &= ~(termios.IXON | termios.IXOFF)
+        # rtscts
+        if hasattr(termios, 'CRTSCTS'):
+            if self._rtscts:
+                cflag |= (termios.CRTSCTS)
+            else:
+                cflag &= ~(termios.CRTSCTS)
+        elif hasattr(termios, 'CNEW_RTSCTS'):   # try it with alternate constant name
+            if self._rtscts:
+                cflag |= (termios.CNEW_RTSCTS)
+            else:
+                cflag &= ~(termios.CNEW_RTSCTS)
+        # XXX should there be a warning if setting up rtscts (and xonxoff etc) fails??
+
+        # buffer
+        # vmin "minimal number of characters to be read. 0 for non blocking"
+        if vmin < 0 or vmin > 255:
+            raise ValueError('Invalid vmin: {!r}'.format(vmin))
+        cc[termios.VMIN] = vmin
+        # vtime
+        if vtime < 0 or vtime > 255:
+            raise ValueError('Invalid vtime: {!r}'.format(vtime))
+        cc[termios.VTIME] = vtime
+        # activate settings
+        if force_update or [iflag, oflag, cflag, lflag, ispeed, ospeed, cc] != orig_attr:
+            termios.tcsetattr(
+                self.fd,
+                termios.TCSANOW,
+                [iflag, oflag, cflag, lflag, ispeed, ospeed, cc])
+
+        # apply custom baud rate, if any
+        if custom_baud is not None:
+            self._set_special_baudrate(custom_baud)
+
+        if self._rs485_mode is not None:
+            self._set_rs485_mode(self._rs485_mode)
+
+    def close(self):
+        """Close port"""
+        if self.is_open:
+            if self.fd is not None:
+                os.close(self.fd)
+                self.fd = None
+                os.close(self.pipe_abort_read_w)
+                os.close(self.pipe_abort_read_r)
+                os.close(self.pipe_abort_write_w)
+                os.close(self.pipe_abort_write_r)
+                self.pipe_abort_read_r, self.pipe_abort_read_w = None, None
+                self.pipe_abort_write_r, self.pipe_abort_write_w = None, None
+            self.is_open = False
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def in_waiting(self):
+        """Return the number of bytes currently in the input buffer."""
+        #~ s = fcntl.ioctl(self.fd, termios.FIONREAD, TIOCM_zero_str)
+        s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
+        return struct.unpack('I', s)[0]
+
+    # select based implementation, proved to work on many systems
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        read = bytearray()
+        timeout = Timeout(self._timeout)
+        while len(read) < size:
+            try:
+                ready, _, _ = select.select([self.fd, self.pipe_abort_read_r], [], [], timeout.time_left())
+                if self.pipe_abort_read_r in ready:
+                    os.read(self.pipe_abort_read_r, 1000)
+                    break
+                # If select was used with a timeout, and the timeout occurs, it
+                # returns with empty lists -> thus abort read operation.
+                # For timeout == 0 (non-blocking operation) also abort when
+                # there is nothing to read.
+                if not ready:
+                    break   # timeout
+                buf = os.read(self.fd, size - len(read))
+                # read should always return some data as select reported it was
+                # ready to read when we get to this point.
+                if not buf:
+                    # Disconnected devices, at least on Linux, show the
+                    # behavior that they are always ready to read immediately
+                    # but reading returns nothing.
+                    raise SerialException(
+                        'device reports readiness to read but returned no data '
+                        '(device disconnected or multiple access on port?)')
+                read.extend(buf)
+            except OSError as e:
+                # this is for Python 3.x where select.error is a subclass of
+                # OSError ignore BlockingIOErrors and EINTR. other errors are shown
+                # https://www.python.org/dev/peps/pep-0475.
+                if e.errno not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('read failed: {}'.format(e))
+            except select.error as e:
+                # this is for Python 2.x
+                # ignore BlockingIOErrors and EINTR. all errors are shown
+                # see also http://www.python.org/dev/peps/pep-3151/#select
+                if e[0] not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('read failed: {}'.format(e))
+            if timeout.expired():
+                break
+        return bytes(read)
+
+    def cancel_read(self):
+        if self.is_open:
+            os.write(self.pipe_abort_read_w, b"x")
+
+    def cancel_write(self):
+        if self.is_open:
+            os.write(self.pipe_abort_write_w, b"x")
+
+    def write(self, data):
+        """Output the given byte string over the serial port."""
+        if not self.is_open:
+            raise portNotOpenError
+        d = to_bytes(data)
+        tx_len = length = len(d)
+        timeout = Timeout(self._write_timeout)
+        while tx_len > 0:
+            try:
+                n = os.write(self.fd, d)
+                if timeout.is_non_blocking:
+                    # Zero timeout indicates non-blocking - simply return the
+                    # number of bytes of data actually written
+                    return n
+                elif not timeout.is_infinite:
+                    # when timeout is set, use select to wait for being ready
+                    # with the time left as timeout
+                    if timeout.expired():
+                        raise writeTimeoutError
+                    abort, ready, _ = select.select([self.pipe_abort_write_r], [self.fd], [], timeout.time_left())
+                    if abort:
+                        os.read(self.pipe_abort_write_r, 1000)
+                        break
+                    if not ready:
+                        raise writeTimeoutError
+                else:
+                    assert timeout.time_left() is None
+                    # wait for write operation
+                    abort, ready, _ = select.select([self.pipe_abort_write_r], [self.fd], [], None)
+                    if abort:
+                        os.read(self.pipe_abort_write_r, 1)
+                        break
+                    if not ready:
+                        raise SerialException('write failed (select)')
+                d = d[n:]
+                tx_len -= n
+            except SerialException:
+                raise
+            except OSError as e:
+                # this is for Python 3.x where select.error is a subclass of
+                # OSError ignore BlockingIOErrors and EINTR. other errors are shown
+                # https://www.python.org/dev/peps/pep-0475.
+                if e.errno not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('write failed: {}'.format(e))
+            except select.error as e:
+                # this is for Python 2.x
+                # ignore BlockingIOErrors and EINTR. all errors are shown
+                # see also http://www.python.org/dev/peps/pep-3151/#select
+                if e[0] not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('write failed: {}'.format(e))
+            if not timeout.is_non_blocking and timeout.expired():
+                raise writeTimeoutError
+        return length - len(d)
+
+    def flush(self):
+        """\
+        Flush of file like objects. In this case, wait until all data
+        is written.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        termios.tcdrain(self.fd)
+
+    def reset_input_buffer(self):
+        """Clear input buffer, discarding all that is in the buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        termios.tcflush(self.fd, termios.TCIFLUSH)
+
+    def reset_output_buffer(self):
+        """\
+        Clear output buffer, aborting the current output and discarding all
+        that is in the buffer.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        termios.tcflush(self.fd, termios.TCOFLUSH)
+
+    def send_break(self, duration=0.25):
+        """\
+        Send break condition. Timed, returns to idle state after given
+        duration.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        termios.tcsendbreak(self.fd, int(duration / 0.25))
+
+    def _update_break_state(self):
+        """\
+        Set break: Controls TXD. When active, no transmitting is possible.
+        """
+        if self._break_state:
+            fcntl.ioctl(self.fd, TIOCSBRK)
+        else:
+            fcntl.ioctl(self.fd, TIOCCBRK)
+
+    def _update_rts_state(self):
+        """Set terminal status line: Request To Send"""
+        if self._rts_state:
+            fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_RTS_str)
+        else:
+            fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_RTS_str)
+
+    def _update_dtr_state(self):
+        """Set terminal status line: Data Terminal Ready"""
+        if self._dtr_state:
+            fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_DTR_str)
+        else:
+            fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_DTR_str)
+
+    @property
+    def cts(self):
+        """Read terminal status line: Clear To Send"""
+        if not self.is_open:
+            raise portNotOpenError
+        s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+        return struct.unpack('I', s)[0] & TIOCM_CTS != 0
+
+    @property
+    def dsr(self):
+        """Read terminal status line: Data Set Ready"""
+        if not self.is_open:
+            raise portNotOpenError
+        s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+        return struct.unpack('I', s)[0] & TIOCM_DSR != 0
+
+    @property
+    def ri(self):
+        """Read terminal status line: Ring Indicator"""
+        if not self.is_open:
+            raise portNotOpenError
+        s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+        return struct.unpack('I', s)[0] & TIOCM_RI != 0
+
+    @property
+    def cd(self):
+        """Read terminal status line: Carrier Detect"""
+        if not self.is_open:
+            raise portNotOpenError
+        s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+        return struct.unpack('I', s)[0] & TIOCM_CD != 0
+
+    # - - platform specific - - - -
+
+    @property
+    def out_waiting(self):
+        """Return the number of bytes currently in the output buffer."""
+        #~ s = fcntl.ioctl(self.fd, termios.FIONREAD, TIOCM_zero_str)
+        s = fcntl.ioctl(self.fd, TIOCOUTQ, TIOCM_zero_str)
+        return struct.unpack('I', s)[0]
+
+    def fileno(self):
+        """\
+        For easier use of the serial port instance with select.
+        WARNING: this function is not portable to different platforms!
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        return self.fd
+
+    def set_input_flow_control(self, enable=True):
+        """\
+        Manually control flow - when software flow control is enabled.
+        This will send XON (true) or XOFF (false) to the other device.
+        WARNING: this function is not portable to different platforms!
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if enable:
+            termios.tcflow(self.fd, termios.TCION)
+        else:
+            termios.tcflow(self.fd, termios.TCIOFF)
+
+    def set_output_flow_control(self, enable=True):
+        """\
+        Manually control flow of outgoing data - when hardware or software flow
+        control is enabled.
+        WARNING: this function is not portable to different platforms!
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if enable:
+            termios.tcflow(self.fd, termios.TCOON)
+        else:
+            termios.tcflow(self.fd, termios.TCOOFF)
+
+    def nonblocking(self):
+        """DEPRECATED - has no use"""
+        import warnings
+        warnings.warn("nonblocking() has no effect, already nonblocking", DeprecationWarning)
+
+
+class PosixPollSerial(Serial):
+    """\
+    Poll based read implementation. Not all systems support poll properly.
+    However this one has better handling of errors, such as a device
+    disconnecting while it's in use (e.g. USB-serial unplugged).
+    """
+
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        read = bytearray()
+        poll = select.poll()
+        poll.register(self.fd, select.POLLIN | select.POLLERR | select.POLLHUP | select.POLLNVAL)
+        if size > 0:
+            while len(read) < size:
+                # print "\tread(): size",size, "have", len(read)    #debug
+                # wait until device becomes ready to read (or something fails)
+                for fd, event in poll.poll(self._timeout * 1000):
+                    if event & (select.POLLERR | select.POLLHUP | select.POLLNVAL):
+                        raise SerialException('device reports error (poll)')
+                    #  we don't care if it is select.POLLIN or timeout, that's
+                    #  handled below
+                buf = os.read(self.fd, size - len(read))
+                read.extend(buf)
+                if ((self._timeout is not None and self._timeout >= 0) or
+                        (self._inter_byte_timeout is not None and self._inter_byte_timeout > 0)) and not buf:
+                    break   # early abort on timeout
+        return bytes(read)
+
+
+class VTIMESerial(Serial):
+    """\
+    Implement timeout using vtime of tty device instead of using select.
+    This means that no inter character timeout can be specified and that
+    the error handling is degraded.
+
+    Overall timeout is disabled when inter-character timeout is used.
+    """
+
+    def _reconfigure_port(self, force_update=True):
+        """Set communication parameters on opened port."""
+        super(VTIMESerial, self)._reconfigure_port()
+        fcntl.fcntl(self.fd, fcntl.F_SETFL, 0)  # clear O_NONBLOCK
+
+        if self._inter_byte_timeout is not None:
+            vmin = 1
+            vtime = int(self._inter_byte_timeout * 10)
+        elif self._timeout is None:
+            vmin = 1
+            vtime = 0
+        else:
+            vmin = 0
+            vtime = int(self._timeout * 10)
+        try:
+            orig_attr = termios.tcgetattr(self.fd)
+            iflag, oflag, cflag, lflag, ispeed, ospeed, cc = orig_attr
+        except termios.error as msg:      # if a port is nonexistent but has a /dev file, it'll fail here
+            raise serial.SerialException("Could not configure port: {}".format(msg))
+
+        if vtime < 0 or vtime > 255:
+            raise ValueError('Invalid vtime: {!r}'.format(vtime))
+        cc[termios.VTIME] = vtime
+        cc[termios.VMIN] = vmin
+
+        termios.tcsetattr(
+                self.fd,
+                termios.TCSANOW,
+                [iflag, oflag, cflag, lflag, ispeed, ospeed, cc])
+
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        read = bytearray()
+        while len(read) < size:
+            buf = os.read(self.fd, size - len(read))
+            if not buf:
+                break
+            read.extend(buf)
+        return bytes(read)
+
+    # hack to make hasattr return false
+    cancel_read = property()

venv/lib/python3.11/site-packages/serial/serialutil.py

@@ -0,0 +1,693 @@
+#! python
+#
+# Base class and support functions used by various backends.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2016 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+import io
+import time
+
+# ``memoryview`` was introduced in Python 2.7 and ``bytes(some_memoryview)``
+# isn't returning the contents (very unfortunate). Therefore we need special
+# cases and test for it. Ensure that there is a ``memoryview`` object for older
+# Python versions. This is easier than making every test dependent on its
+# existence.
+try:
+    memoryview
+except (NameError, AttributeError):
+    # implementation does not matter as we do not really use it.
+    # it just must not inherit from something else we might care for.
+    class memoryview(object):   # pylint: disable=redefined-builtin,invalid-name
+        pass
+
+try:
+    unicode
+except (NameError, AttributeError):
+    unicode = str       # for Python 3, pylint: disable=redefined-builtin,invalid-name
+
+try:
+    basestring
+except (NameError, AttributeError):
+    basestring = (str,)    # for Python 3, pylint: disable=redefined-builtin,invalid-name
+
+
+# "for byte in data" fails for python3 as it returns ints instead of bytes
+def iterbytes(b):
+    """Iterate over bytes, returning bytes instead of ints (python3)"""
+    if isinstance(b, memoryview):
+        b = b.tobytes()
+    i = 0
+    while True:
+        a = b[i:i + 1]
+        i += 1
+        if a:
+            yield a
+        else:
+            break
+
+
+# all Python versions prior 3.x convert ``str([17])`` to '[17]' instead of '\x11'
+# so a simple ``bytes(sequence)`` doesn't work for all versions
+def to_bytes(seq):
+    """convert a sequence to a bytes type"""
+    if isinstance(seq, bytes):
+        return seq
+    elif isinstance(seq, bytearray):
+        return bytes(seq)
+    elif isinstance(seq, memoryview):
+        return seq.tobytes()
+    elif isinstance(seq, unicode):
+        raise TypeError('unicode strings are not supported, please encode to bytes: {!r}'.format(seq))
+    else:
+        # handle list of integers and bytes (one or more items) for Python 2 and 3
+        return bytes(bytearray(seq))
+
+
+# create control bytes
+XON = to_bytes([17])
+XOFF = to_bytes([19])
+
+CR = to_bytes([13])
+LF = to_bytes([10])
+
+
+PARITY_NONE, PARITY_EVEN, PARITY_ODD, PARITY_MARK, PARITY_SPACE = 'N', 'E', 'O', 'M', 'S'
+STOPBITS_ONE, STOPBITS_ONE_POINT_FIVE, STOPBITS_TWO = (1, 1.5, 2)
+FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS = (5, 6, 7, 8)
+
+PARITY_NAMES = {
+    PARITY_NONE: 'None',
+    PARITY_EVEN: 'Even',
+    PARITY_ODD: 'Odd',
+    PARITY_MARK: 'Mark',
+    PARITY_SPACE: 'Space',
+}
+
+
+class SerialException(IOError):
+    """Base class for serial port related exceptions."""
+
+
+class SerialTimeoutException(SerialException):
+    """Write timeouts give an exception"""
+
+
+writeTimeoutError = SerialTimeoutException('Write timeout')
+portNotOpenError = SerialException('Attempting to use a port that is not open')
+
+
+class Timeout(object):
+    """\
+    Abstraction for timeout operations. Using time.monotonic() if available
+    or time.time() in all other cases.
+
+    The class can also be initialized with 0 or None, in order to support
+    non-blocking and fully blocking I/O operations. The attributes
+    is_non_blocking and is_infinite are set accordingly.
+    """
+    if hasattr(time, 'monotonic'):
+        # Timeout implementation with time.monotonic(). This function is only
+        # supported by Python 3.3 and above. It returns a time in seconds
+        # (float) just as time.time(), but is not affected by system clock
+        # adjustments.
+        TIME = time.monotonic
+    else:
+        # Timeout implementation with time.time(). This is compatible with all
+        # Python versions but has issues if the clock is adjusted while the
+        # timeout is running.
+        TIME = time.time
+
+    def __init__(self, duration):
+        """Initialize a timeout with given duration"""
+        self.is_infinite = (duration is None)
+        self.is_non_blocking = (duration == 0)
+        self.duration = duration
+        if duration is not None:
+            self.target_time = self.TIME() + duration
+        else:
+            self.target_time = None
+
+    def expired(self):
+        """Return a boolean, telling if the timeout has expired"""
+        return self.target_time is not None and self.time_left() <= 0
+
+    def time_left(self):
+        """Return how many seconds are left until the timeout expires"""
+        if self.is_non_blocking:
+            return 0
+        elif self.is_infinite:
+            return None
+        else:
+            delta = self.target_time - self.TIME()
+            if delta > self.duration:
+                # clock jumped, recalculate
+                self.target_time = self.TIME() + self.duration
+                return self.duration
+            else:
+                return max(0, delta)
+
+    def restart(self, duration):
+        """\
+        Restart a timeout, only supported if a timeout was already set up
+        before.
+        """
+        self.duration = duration
+        self.target_time = self.TIME() + duration
+
+
+class SerialBase(io.RawIOBase):
+    """\
+    Serial port base class. Provides __init__ function and properties to
+    get/set port settings.
+    """
+
+    # default values, may be overridden in subclasses that do not support all values
+    BAUDRATES = (50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
+                 9600, 19200, 38400, 57600, 115200, 230400, 460800, 500000,
+                 576000, 921600, 1000000, 1152000, 1500000, 2000000, 2500000,
+                 3000000, 3500000, 4000000)
+    BYTESIZES = (FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS)
+    PARITIES = (PARITY_NONE, PARITY_EVEN, PARITY_ODD, PARITY_MARK, PARITY_SPACE)
+    STOPBITS = (STOPBITS_ONE, STOPBITS_ONE_POINT_FIVE, STOPBITS_TWO)
+
+    def __init__(self,
+                 port=None,
+                 baudrate=9600,
+                 bytesize=EIGHTBITS,
+                 parity=PARITY_NONE,
+                 stopbits=STOPBITS_ONE,
+                 timeout=None,
+                 xonxoff=False,
+                 rtscts=False,
+                 write_timeout=None,
+                 dsrdtr=False,
+                 inter_byte_timeout=None,
+                 exclusive=None,
+                 **kwargs):
+        """\
+        Initialize comm port object. If a "port" is given, then the port will be
+        opened immediately. Otherwise a Serial port object in closed state
+        is returned.
+        """
+
+        self.is_open = False
+        self.portstr = None
+        self.name = None
+        # correct values are assigned below through properties
+        self._port = None
+        self._baudrate = None
+        self._bytesize = None
+        self._parity = None
+        self._stopbits = None
+        self._timeout = None
+        self._write_timeout = None
+        self._xonxoff = None
+        self._rtscts = None
+        self._dsrdtr = None
+        self._inter_byte_timeout = None
+        self._rs485_mode = None  # disabled by default
+        self._rts_state = True
+        self._dtr_state = True
+        self._break_state = False
+        self._exclusive = None
+
+        # assign values using get/set methods using the properties feature
+        self.port = port
+        self.baudrate = baudrate
+        self.bytesize = bytesize
+        self.parity = parity
+        self.stopbits = stopbits
+        self.timeout = timeout
+        self.write_timeout = write_timeout
+        self.xonxoff = xonxoff
+        self.rtscts = rtscts
+        self.dsrdtr = dsrdtr
+        self.inter_byte_timeout = inter_byte_timeout
+        self.exclusive = exclusive
+
+        # watch for backward compatible kwargs
+        if 'writeTimeout' in kwargs:
+            self.write_timeout = kwargs.pop('writeTimeout')
+        if 'interCharTimeout' in kwargs:
+            self.inter_byte_timeout = kwargs.pop('interCharTimeout')
+        if kwargs:
+            raise ValueError('unexpected keyword arguments: {!r}'.format(kwargs))
+
+        if port is not None:
+            self.open()
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    # to be implemented by subclasses:
+    # def open(self):
+    # def close(self):
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def port(self):
+        """\
+        Get the current port setting. The value that was passed on init or using
+        setPort() is passed back.
+        """
+        return self._port
+
+    @port.setter
+    def port(self, port):
+        """\
+        Change the port.
+        """
+        if port is not None and not isinstance(port, basestring):
+            raise ValueError('"port" must be None or a string, not {}'.format(type(port)))
+        was_open = self.is_open
+        if was_open:
+            self.close()
+        self.portstr = port
+        self._port = port
+        self.name = self.portstr
+        if was_open:
+            self.open()
+
+    @property
+    def baudrate(self):
+        """Get the current baud rate setting."""
+        return self._baudrate
+
+    @baudrate.setter
+    def baudrate(self, baudrate):
+        """\
+        Change baud rate. It raises a ValueError if the port is open and the
+        baud rate is not possible. If the port is closed, then the value is
+        accepted and the exception is raised when the port is opened.
+        """
+        try:
+            b = int(baudrate)
+        except TypeError:
+            raise ValueError("Not a valid baudrate: {!r}".format(baudrate))
+        else:
+            if b < 0:
+                raise ValueError("Not a valid baudrate: {!r}".format(baudrate))
+            self._baudrate = b
+            if self.is_open:
+                self._reconfigure_port()
+
+    @property
+    def bytesize(self):
+        """Get the current byte size setting."""
+        return self._bytesize
+
+    @bytesize.setter
+    def bytesize(self, bytesize):
+        """Change byte size."""
+        if bytesize not in self.BYTESIZES:
+            raise ValueError("Not a valid byte size: {!r}".format(bytesize))
+        self._bytesize = bytesize
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def exclusive(self):
+        """Get the current exclusive access setting."""
+        return self._exclusive
+
+    @exclusive.setter
+    def exclusive(self, exclusive):
+        """Change the exclusive access setting."""
+        self._exclusive = exclusive
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def parity(self):
+        """Get the current parity setting."""
+        return self._parity
+
+    @parity.setter
+    def parity(self, parity):
+        """Change parity setting."""
+        if parity not in self.PARITIES:
+            raise ValueError("Not a valid parity: {!r}".format(parity))
+        self._parity = parity
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def stopbits(self):
+        """Get the current stop bits setting."""
+        return self._stopbits
+
+    @stopbits.setter
+    def stopbits(self, stopbits):
+        """Change stop bits size."""
+        if stopbits not in self.STOPBITS:
+            raise ValueError("Not a valid stop bit size: {!r}".format(stopbits))
+        self._stopbits = stopbits
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def timeout(self):
+        """Get the current timeout setting."""
+        return self._timeout
+
+    @timeout.setter
+    def timeout(self, timeout):
+        """Change timeout setting."""
+        if timeout is not None:
+            try:
+                timeout + 1     # test if it's a number, will throw a TypeError if not...
+            except TypeError:
+                raise ValueError("Not a valid timeout: {!r}".format(timeout))
+            if timeout < 0:
+                raise ValueError("Not a valid timeout: {!r}".format(timeout))
+        self._timeout = timeout
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def write_timeout(self):
+        """Get the current timeout setting."""
+        return self._write_timeout
+
+    @write_timeout.setter
+    def write_timeout(self, timeout):
+        """Change timeout setting."""
+        if timeout is not None:
+            if timeout < 0:
+                raise ValueError("Not a valid timeout: {!r}".format(timeout))
+            try:
+                timeout + 1     # test if it's a number, will throw a TypeError if not...
+            except TypeError:
+                raise ValueError("Not a valid timeout: {!r}".format(timeout))
+
+        self._write_timeout = timeout
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def inter_byte_timeout(self):
+        """Get the current inter-character timeout setting."""
+        return self._inter_byte_timeout
+
+    @inter_byte_timeout.setter
+    def inter_byte_timeout(self, ic_timeout):
+        """Change inter-byte timeout setting."""
+        if ic_timeout is not None:
+            if ic_timeout < 0:
+                raise ValueError("Not a valid timeout: {!r}".format(ic_timeout))
+            try:
+                ic_timeout + 1     # test if it's a number, will throw a TypeError if not...
+            except TypeError:
+                raise ValueError("Not a valid timeout: {!r}".format(ic_timeout))
+
+        self._inter_byte_timeout = ic_timeout
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def xonxoff(self):
+        """Get the current XON/XOFF setting."""
+        return self._xonxoff
+
+    @xonxoff.setter
+    def xonxoff(self, xonxoff):
+        """Change XON/XOFF setting."""
+        self._xonxoff = xonxoff
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def rtscts(self):
+        """Get the current RTS/CTS flow control setting."""
+        return self._rtscts
+
+    @rtscts.setter
+    def rtscts(self, rtscts):
+        """Change RTS/CTS flow control setting."""
+        self._rtscts = rtscts
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def dsrdtr(self):
+        """Get the current DSR/DTR flow control setting."""
+        return self._dsrdtr
+
+    @dsrdtr.setter
+    def dsrdtr(self, dsrdtr=None):
+        """Change DsrDtr flow control setting."""
+        if dsrdtr is None:
+            # if not set, keep backwards compatibility and follow rtscts setting
+            self._dsrdtr = self._rtscts
+        else:
+            # if defined independently, follow its value
+            self._dsrdtr = dsrdtr
+        if self.is_open:
+            self._reconfigure_port()
+
+    @property
+    def rts(self):
+        return self._rts_state
+
+    @rts.setter
+    def rts(self, value):
+        self._rts_state = value
+        if self.is_open:
+            self._update_rts_state()
+
+    @property
+    def dtr(self):
+        return self._dtr_state
+
+    @dtr.setter
+    def dtr(self, value):
+        self._dtr_state = value
+        if self.is_open:
+            self._update_dtr_state()
+
+    @property
+    def break_condition(self):
+        return self._break_state
+
+    @break_condition.setter
+    def break_condition(self, value):
+        self._break_state = value
+        if self.is_open:
+            self._update_break_state()
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+    # functions useful for RS-485 adapters
+
+    @property
+    def rs485_mode(self):
+        """\
+        Enable RS485 mode and apply new settings, set to None to disable.
+        See serial.rs485.RS485Settings for more info about the value.
+        """
+        return self._rs485_mode
+
+    @rs485_mode.setter
+    def rs485_mode(self, rs485_settings):
+        self._rs485_mode = rs485_settings
+        if self.is_open:
+            self._reconfigure_port()
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    _SAVED_SETTINGS = ('baudrate', 'bytesize', 'parity', 'stopbits', 'xonxoff',
+                       'dsrdtr', 'rtscts', 'timeout', 'write_timeout',
+                       'inter_byte_timeout')
+
+    def get_settings(self):
+        """\
+        Get current port settings as a dictionary. For use with
+        apply_settings().
+        """
+        return dict([(key, getattr(self, '_' + key)) for key in self._SAVED_SETTINGS])
+
+    def apply_settings(self, d):
+        """\
+        Apply stored settings from a dictionary returned from
+        get_settings(). It's allowed to delete keys from the dictionary. These
+        values will simply left unchanged.
+        """
+        for key in self._SAVED_SETTINGS:
+            if key in d and d[key] != getattr(self, '_' + key):   # check against internal "_" value
+                setattr(self, key, d[key])          # set non "_" value to use properties write function
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    def __repr__(self):
+        """String representation of the current port settings and its state."""
+        return '{name}<id=0x{id:x}, open={p.is_open}>(port={p.portstr!r}, ' \
+               'baudrate={p.baudrate!r}, bytesize={p.bytesize!r}, parity={p.parity!r}, ' \
+               'stopbits={p.stopbits!r}, timeout={p.timeout!r}, xonxoff={p.xonxoff!r}, ' \
+               'rtscts={p.rtscts!r}, dsrdtr={p.dsrdtr!r})'.format(
+                   name=self.__class__.__name__, id=id(self), p=self)
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+    # compatibility with io library
+    # pylint: disable=invalid-name,missing-docstring
+
+    def readable(self):
+        return True
+
+    def writable(self):
+        return True
+
+    def seekable(self):
+        return False
+
+    def readinto(self, b):
+        data = self.read(len(b))
+        n = len(data)
+        try:
+            b[:n] = data
+        except TypeError as err:
+            import array
+            if not isinstance(b, array.array):
+                raise err
+            b[:n] = array.array('b', data)
+        return n
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+    # context manager
+
+    def __enter__(self):
+        if not self.is_open:
+            self.open()
+        return self
+
+    def __exit__(self, *args, **kwargs):
+        self.close()
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    def send_break(self, duration=0.25):
+        """\
+        Send break condition. Timed, returns to idle state after given
+        duration.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        self.break_condition = True
+        time.sleep(duration)
+        self.break_condition = False
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+    # backwards compatibility / deprecated functions
+
+    def flushInput(self):
+        self.reset_input_buffer()
+
+    def flushOutput(self):
+        self.reset_output_buffer()
+
+    def inWaiting(self):
+        return self.in_waiting
+
+    def sendBreak(self, duration=0.25):
+        self.send_break(duration)
+
+    def setRTS(self, value=1):
+        self.rts = value
+
+    def setDTR(self, value=1):
+        self.dtr = value
+
+    def getCTS(self):
+        return self.cts
+
+    def getDSR(self):
+        return self.dsr
+
+    def getRI(self):
+        return self.ri
+
+    def getCD(self):
+        return self.cd
+
+    def setPort(self, port):
+        self.port = port
+
+    @property
+    def writeTimeout(self):
+        return self.write_timeout
+
+    @writeTimeout.setter
+    def writeTimeout(self, timeout):
+        self.write_timeout = timeout
+
+    @property
+    def interCharTimeout(self):
+        return self.inter_byte_timeout
+
+    @interCharTimeout.setter
+    def interCharTimeout(self, interCharTimeout):
+        self.inter_byte_timeout = interCharTimeout
+
+    def getSettingsDict(self):
+        return self.get_settings()
+
+    def applySettingsDict(self, d):
+        self.apply_settings(d)
+
+    def isOpen(self):
+        return self.is_open
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+    # additional functionality
+
+    def read_all(self):
+        """\
+        Read all bytes currently available in the buffer of the OS.
+        """
+        return self.read(self.in_waiting)
+
+    def read_until(self, terminator=LF, size=None):
+        """\
+        Read until a termination sequence is found ('\n' by default), the size
+        is exceeded or until timeout occurs.
+        """
+        lenterm = len(terminator)
+        line = bytearray()
+        timeout = Timeout(self._timeout)
+        while True:
+            c = self.read(1)
+            if c:
+                line += c
+                if line[-lenterm:] == terminator:
+                    break
+                if size is not None and len(line) >= size:
+                    break
+            else:
+                break
+            if timeout.expired():
+                break
+        return bytes(line)
+
+    def iread_until(self, *args, **kwargs):
+        """\
+        Read lines, implemented as generator. It will raise StopIteration on
+        timeout (empty read).
+        """
+        while True:
+            line = self.read_until(*args, **kwargs)
+            if not line:
+                break
+            yield line
+
+
+#  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+if __name__ == '__main__':
+    import sys
+    s = SerialBase()
+    sys.stdout.write('port name:  {}\n'.format(s.name))
+    sys.stdout.write('baud rates: {}\n'.format(s.BAUDRATES))
+    sys.stdout.write('byte sizes: {}\n'.format(s.BYTESIZES))
+    sys.stdout.write('parities:   {}\n'.format(s.PARITIES))
+    sys.stdout.write('stop bits:  {}\n'.format(s.STOPBITS))
+    sys.stdout.write('{}\n'.format(s))

venv/lib/python3.11/site-packages/serial/serialwin32.py

@@ -0,0 +1,475 @@
+#! python
+#
+# backend for Windows ("win32" incl. 32/64 bit support)
+#
+# (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# Initial patch to use ctypes by Giovanni Bajo <rasky@develer.com>
+
+# pylint: disable=invalid-name,too-few-public-methods
+import ctypes
+import time
+from serial import win32
+
+import serial
+from serial.serialutil import SerialBase, SerialException, to_bytes, portNotOpenError, writeTimeoutError
+
+
+class Serial(SerialBase):
+    """Serial port implementation for Win32 based on ctypes."""
+
+    BAUDRATES = (50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
+                 9600, 19200, 38400, 57600, 115200)
+
+    def __init__(self, *args, **kwargs):
+        self._port_handle = None
+        self._overlapped_read = None
+        self._overlapped_write = None
+        super(Serial, self).__init__(*args, **kwargs)
+
+    def open(self):
+        """\
+        Open port with current settings. This may throw a SerialException
+        if the port cannot be opened.
+        """
+        if self._port is None:
+            raise SerialException("Port must be configured before it can be used.")
+        if self.is_open:
+            raise SerialException("Port is already open.")
+        # the "\\.\COMx" format is required for devices other than COM1-COM8
+        # not all versions of windows seem to support this properly
+        # so that the first few ports are used with the DOS device name
+        port = self.name
+        try:
+            if port.upper().startswith('COM') and int(port[3:]) > 8:
+                port = '\\\\.\\' + port
+        except ValueError:
+            # for like COMnotanumber
+            pass
+        self._port_handle = win32.CreateFile(
+            port,
+            win32.GENERIC_READ | win32.GENERIC_WRITE,
+            0,  # exclusive access
+            None,  # no security
+            win32.OPEN_EXISTING,
+            win32.FILE_ATTRIBUTE_NORMAL | win32.FILE_FLAG_OVERLAPPED,
+            0)
+        if self._port_handle == win32.INVALID_HANDLE_VALUE:
+            self._port_handle = None    # 'cause __del__ is called anyway
+            raise SerialException("could not open port {!r}: {!r}".format(self.portstr, ctypes.WinError()))
+
+        try:
+            self._overlapped_read = win32.OVERLAPPED()
+            self._overlapped_read.hEvent = win32.CreateEvent(None, 1, 0, None)
+            self._overlapped_write = win32.OVERLAPPED()
+            #~ self._overlapped_write.hEvent = win32.CreateEvent(None, 1, 0, None)
+            self._overlapped_write.hEvent = win32.CreateEvent(None, 0, 0, None)
+
+            # Setup a 4k buffer
+            win32.SetupComm(self._port_handle, 4096, 4096)
+
+            # Save original timeout values:
+            self._orgTimeouts = win32.COMMTIMEOUTS()
+            win32.GetCommTimeouts(self._port_handle, ctypes.byref(self._orgTimeouts))
+
+            self._reconfigure_port()
+
+            # Clear buffers:
+            # Remove anything that was there
+            win32.PurgeComm(
+                self._port_handle,
+                win32.PURGE_TXCLEAR | win32.PURGE_TXABORT |
+                win32.PURGE_RXCLEAR | win32.PURGE_RXABORT)
+        except:
+            try:
+                self._close()
+            except:
+                # ignore any exception when closing the port
+                # also to keep original exception that happened when setting up
+                pass
+            self._port_handle = None
+            raise
+        else:
+            self.is_open = True
+
+    def _reconfigure_port(self):
+        """Set communication parameters on opened port."""
+        if not self._port_handle:
+            raise SerialException("Can only operate on a valid port handle")
+
+        # Set Windows timeout values
+        # timeouts is a tuple with the following items:
+        # (ReadIntervalTimeout,ReadTotalTimeoutMultiplier,
+        #  ReadTotalTimeoutConstant,WriteTotalTimeoutMultiplier,
+        #  WriteTotalTimeoutConstant)
+        timeouts = win32.COMMTIMEOUTS()
+        if self._timeout is None:
+            pass  # default of all zeros is OK
+        elif self._timeout == 0:
+            timeouts.ReadIntervalTimeout = win32.MAXDWORD
+        else:
+            timeouts.ReadTotalTimeoutConstant = max(int(self._timeout * 1000), 1)
+        if self._timeout != 0 and self._inter_byte_timeout is not None:
+            timeouts.ReadIntervalTimeout = max(int(self._inter_byte_timeout * 1000), 1)
+
+        if self._write_timeout is None:
+            pass
+        elif self._write_timeout == 0:
+            timeouts.WriteTotalTimeoutConstant = win32.MAXDWORD
+        else:
+            timeouts.WriteTotalTimeoutConstant = max(int(self._write_timeout * 1000), 1)
+        win32.SetCommTimeouts(self._port_handle, ctypes.byref(timeouts))
+
+        win32.SetCommMask(self._port_handle, win32.EV_ERR)
+
+        # Setup the connection info.
+        # Get state and modify it:
+        comDCB = win32.DCB()
+        win32.GetCommState(self._port_handle, ctypes.byref(comDCB))
+        comDCB.BaudRate = self._baudrate
+
+        if self._bytesize == serial.FIVEBITS:
+            comDCB.ByteSize = 5
+        elif self._bytesize == serial.SIXBITS:
+            comDCB.ByteSize = 6
+        elif self._bytesize == serial.SEVENBITS:
+            comDCB.ByteSize = 7
+        elif self._bytesize == serial.EIGHTBITS:
+            comDCB.ByteSize = 8
+        else:
+            raise ValueError("Unsupported number of data bits: {!r}".format(self._bytesize))
+
+        if self._parity == serial.PARITY_NONE:
+            comDCB.Parity = win32.NOPARITY
+            comDCB.fParity = 0  # Disable Parity Check
+        elif self._parity == serial.PARITY_EVEN:
+            comDCB.Parity = win32.EVENPARITY
+            comDCB.fParity = 1  # Enable Parity Check
+        elif self._parity == serial.PARITY_ODD:
+            comDCB.Parity = win32.ODDPARITY
+            comDCB.fParity = 1  # Enable Parity Check
+        elif self._parity == serial.PARITY_MARK:
+            comDCB.Parity = win32.MARKPARITY
+            comDCB.fParity = 1  # Enable Parity Check
+        elif self._parity == serial.PARITY_SPACE:
+            comDCB.Parity = win32.SPACEPARITY
+            comDCB.fParity = 1  # Enable Parity Check
+        else:
+            raise ValueError("Unsupported parity mode: {!r}".format(self._parity))
+
+        if self._stopbits == serial.STOPBITS_ONE:
+            comDCB.StopBits = win32.ONESTOPBIT
+        elif self._stopbits == serial.STOPBITS_ONE_POINT_FIVE:
+            comDCB.StopBits = win32.ONE5STOPBITS
+        elif self._stopbits == serial.STOPBITS_TWO:
+            comDCB.StopBits = win32.TWOSTOPBITS
+        else:
+            raise ValueError("Unsupported number of stop bits: {!r}".format(self._stopbits))
+
+        comDCB.fBinary = 1  # Enable Binary Transmission
+        # Char. w/ Parity-Err are replaced with 0xff (if fErrorChar is set to TRUE)
+        if self._rs485_mode is None:
+            if self._rtscts:
+                comDCB.fRtsControl = win32.RTS_CONTROL_HANDSHAKE
+            else:
+                comDCB.fRtsControl = win32.RTS_CONTROL_ENABLE if self._rts_state else win32.RTS_CONTROL_DISABLE
+            comDCB.fOutxCtsFlow = self._rtscts
+        else:
+            # checks for unsupported settings
+            # XXX verify if platform really does not have a setting for those
+            if not self._rs485_mode.rts_level_for_tx:
+                raise ValueError(
+                    'Unsupported value for RS485Settings.rts_level_for_tx: {!r}'.format(
+                        self._rs485_mode.rts_level_for_tx,))
+            if self._rs485_mode.rts_level_for_rx:
+                raise ValueError(
+                    'Unsupported value for RS485Settings.rts_level_for_rx: {!r}'.format(
+                        self._rs485_mode.rts_level_for_rx,))
+            if self._rs485_mode.delay_before_tx is not None:
+                raise ValueError(
+                    'Unsupported value for RS485Settings.delay_before_tx: {!r}'.format(
+                        self._rs485_mode.delay_before_tx,))
+            if self._rs485_mode.delay_before_rx is not None:
+                raise ValueError(
+                    'Unsupported value for RS485Settings.delay_before_rx: {!r}'.format(
+                        self._rs485_mode.delay_before_rx,))
+            if self._rs485_mode.loopback:
+                raise ValueError(
+                    'Unsupported value for RS485Settings.loopback: {!r}'.format(
+                        self._rs485_mode.loopback,))
+            comDCB.fRtsControl = win32.RTS_CONTROL_TOGGLE
+            comDCB.fOutxCtsFlow = 0
+
+        if self._dsrdtr:
+            comDCB.fDtrControl = win32.DTR_CONTROL_HANDSHAKE
+        else:
+            comDCB.fDtrControl = win32.DTR_CONTROL_ENABLE if self._dtr_state else win32.DTR_CONTROL_DISABLE
+        comDCB.fOutxDsrFlow = self._dsrdtr
+        comDCB.fOutX = self._xonxoff
+        comDCB.fInX = self._xonxoff
+        comDCB.fNull = 0
+        comDCB.fErrorChar = 0
+        comDCB.fAbortOnError = 0
+        comDCB.XonChar = serial.XON
+        comDCB.XoffChar = serial.XOFF
+
+        if not win32.SetCommState(self._port_handle, ctypes.byref(comDCB)):
+            raise SerialException(
+                'Cannot configure port, something went wrong. '
+                'Original message: {!r}'.format(ctypes.WinError()))
+
+    #~ def __del__(self):
+        #~ self.close()
+
+    def _close(self):
+        """internal close port helper"""
+        if self._port_handle is not None:
+            # Restore original timeout values:
+            win32.SetCommTimeouts(self._port_handle, self._orgTimeouts)
+            if self._overlapped_read is not None:
+                self.cancel_read()
+                win32.CloseHandle(self._overlapped_read.hEvent)
+                self._overlapped_read = None
+            if self._overlapped_write is not None:
+                self.cancel_write()
+                win32.CloseHandle(self._overlapped_write.hEvent)
+                self._overlapped_write = None
+            win32.CloseHandle(self._port_handle)
+            self._port_handle = None
+
+    def close(self):
+        """Close port"""
+        if self.is_open:
+            self._close()
+            self.is_open = False
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def in_waiting(self):
+        """Return the number of bytes currently in the input buffer."""
+        flags = win32.DWORD()
+        comstat = win32.COMSTAT()
+        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
+            raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
+        return comstat.cbInQue
+
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if size > 0:
+            win32.ResetEvent(self._overlapped_read.hEvent)
+            flags = win32.DWORD()
+            comstat = win32.COMSTAT()
+            if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
+                raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
+            n = min(comstat.cbInQue, size) if self.timeout == 0 else size
+            if n > 0:
+                buf = ctypes.create_string_buffer(n)
+                rc = win32.DWORD()
+                read_ok = win32.ReadFile(
+                    self._port_handle,
+                    buf,
+                    n,
+                    ctypes.byref(rc),
+                    ctypes.byref(self._overlapped_read))
+                if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
+                    raise SerialException("ReadFile failed ({!r})".format(ctypes.WinError()))
+                result_ok = win32.GetOverlappedResult(
+                    self._port_handle,
+                    ctypes.byref(self._overlapped_read),
+                    ctypes.byref(rc),
+                    True)
+                if not result_ok:
+                    if win32.GetLastError() != win32.ERROR_OPERATION_ABORTED:
+                        raise SerialException("GetOverlappedResult failed ({!r})".format(ctypes.WinError()))
+                read = buf.raw[:rc.value]
+            else:
+                read = bytes()
+        else:
+            read = bytes()
+        return bytes(read)
+
+    def write(self, data):
+        """Output the given byte string over the serial port."""
+        if not self.is_open:
+            raise portNotOpenError
+        #~ if not isinstance(data, (bytes, bytearray)):
+            #~ raise TypeError('expected %s or bytearray, got %s' % (bytes, type(data)))
+        # convert data (needed in case of memoryview instance: Py 3.1 io lib), ctypes doesn't like memoryview
+        data = to_bytes(data)
+        if data:
+            #~ win32event.ResetEvent(self._overlapped_write.hEvent)
+            n = win32.DWORD()
+            success = win32.WriteFile(self._port_handle, data, len(data), ctypes.byref(n), self._overlapped_write)
+            if self._write_timeout != 0:  # if blocking (None) or w/ write timeout (>0)
+                if not success and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
+                    raise SerialException("WriteFile failed ({!r})".format(ctypes.WinError()))
+
+                # Wait for the write to complete.
+                #~ win32.WaitForSingleObject(self._overlapped_write.hEvent, win32.INFINITE)
+                win32.GetOverlappedResult(self._port_handle, self._overlapped_write, ctypes.byref(n), True)
+                if win32.GetLastError() == win32.ERROR_OPERATION_ABORTED:
+                    return n.value  # canceled IO is no error
+                if n.value != len(data):
+                    raise writeTimeoutError
+                return n.value
+            else:
+                errorcode = win32.ERROR_SUCCESS if success else win32.GetLastError()
+                if errorcode in (win32.ERROR_INVALID_USER_BUFFER, win32.ERROR_NOT_ENOUGH_MEMORY,
+                                 win32.ERROR_OPERATION_ABORTED):
+                    return 0
+                elif errorcode in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
+                    # no info on true length provided by OS function in async mode
+                    return len(data)
+                else:
+                    raise SerialException("WriteFile failed ({!r})".format(ctypes.WinError()))
+        else:
+            return 0
+
+    def flush(self):
+        """\
+        Flush of file like objects. In this case, wait until all data
+        is written.
+        """
+        while self.out_waiting:
+            time.sleep(0.05)
+        # XXX could also use WaitCommEvent with mask EV_TXEMPTY, but it would
+        # require overlapped IO and it's also only possible to set a single mask
+        # on the port---
+
+    def reset_input_buffer(self):
+        """Clear input buffer, discarding all that is in the buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        win32.PurgeComm(self._port_handle, win32.PURGE_RXCLEAR | win32.PURGE_RXABORT)
+
+    def reset_output_buffer(self):
+        """\
+        Clear output buffer, aborting the current output and discarding all
+        that is in the buffer.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        win32.PurgeComm(self._port_handle, win32.PURGE_TXCLEAR | win32.PURGE_TXABORT)
+
+    def _update_break_state(self):
+        """Set break: Controls TXD. When active, to transmitting is possible."""
+        if not self.is_open:
+            raise portNotOpenError
+        if self._break_state:
+            win32.SetCommBreak(self._port_handle)
+        else:
+            win32.ClearCommBreak(self._port_handle)
+
+    def _update_rts_state(self):
+        """Set terminal status line: Request To Send"""
+        if self._rts_state:
+            win32.EscapeCommFunction(self._port_handle, win32.SETRTS)
+        else:
+            win32.EscapeCommFunction(self._port_handle, win32.CLRRTS)
+
+    def _update_dtr_state(self):
+        """Set terminal status line: Data Terminal Ready"""
+        if self._dtr_state:
+            win32.EscapeCommFunction(self._port_handle, win32.SETDTR)
+        else:
+            win32.EscapeCommFunction(self._port_handle, win32.CLRDTR)
+
+    def _GetCommModemStatus(self):
+        if not self.is_open:
+            raise portNotOpenError
+        stat = win32.DWORD()
+        win32.GetCommModemStatus(self._port_handle, ctypes.byref(stat))
+        return stat.value
+
+    @property
+    def cts(self):
+        """Read terminal status line: Clear To Send"""
+        return win32.MS_CTS_ON & self._GetCommModemStatus() != 0
+
+    @property
+    def dsr(self):
+        """Read terminal status line: Data Set Ready"""
+        return win32.MS_DSR_ON & self._GetCommModemStatus() != 0
+
+    @property
+    def ri(self):
+        """Read terminal status line: Ring Indicator"""
+        return win32.MS_RING_ON & self._GetCommModemStatus() != 0
+
+    @property
+    def cd(self):
+        """Read terminal status line: Carrier Detect"""
+        return win32.MS_RLSD_ON & self._GetCommModemStatus() != 0
+
+    # - - platform specific - - - -
+
+    def set_buffer_size(self, rx_size=4096, tx_size=None):
+        """\
+        Recommend a buffer size to the driver (device driver can ignore this
+        value). Must be called before the port is opened.
+        """
+        if tx_size is None:
+            tx_size = rx_size
+        win32.SetupComm(self._port_handle, rx_size, tx_size)
+
+    def set_output_flow_control(self, enable=True):
+        """\
+        Manually control flow - when software flow control is enabled.
+        This will do the same as if XON (true) or XOFF (false) are received
+        from the other device and control the transmission accordingly.
+        WARNING: this function is not portable to different platforms!
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if enable:
+            win32.EscapeCommFunction(self._port_handle, win32.SETXON)
+        else:
+            win32.EscapeCommFunction(self._port_handle, win32.SETXOFF)
+
+    @property
+    def out_waiting(self):
+        """Return how many bytes the in the outgoing buffer"""
+        flags = win32.DWORD()
+        comstat = win32.COMSTAT()
+        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
+            raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
+        return comstat.cbOutQue
+
+    def _cancel_overlapped_io(self, overlapped):
+        """Cancel a blocking read operation, may be called from other thread"""
+        # check if read operation is pending
+        rc = win32.DWORD()
+        err = win32.GetOverlappedResult(
+            self._port_handle,
+            ctypes.byref(overlapped),
+            ctypes.byref(rc),
+            False)
+        if not err and win32.GetLastError() in (win32.ERROR_IO_PENDING, win32.ERROR_IO_INCOMPLETE):
+            # cancel, ignoring any errors (e.g. it may just have finished on its own)
+            win32.CancelIoEx(self._port_handle, overlapped)
+
+    def cancel_read(self):
+        """Cancel a blocking read operation, may be called from other thread"""
+        self._cancel_overlapped_io(self._overlapped_read)
+
+    def cancel_write(self):
+        """Cancel a blocking write operation, may be called from other thread"""
+        self._cancel_overlapped_io(self._overlapped_write)
+
+    @SerialBase.exclusive.setter
+    def exclusive(self, exclusive):
+        """Change the exclusive access setting."""
+        if exclusive is not None and not exclusive:
+            raise ValueError('win32 only supports exclusive access (not: {})'.format(exclusive))
+        else:
+            serial.SerialBase.exclusive.__set__(self, exclusive)

venv/lib/python3.11/site-packages/serial/threaded/__init__.py

@@ -0,0 +1,295 @@
+#!/usr/bin/env python3
+#
+# Working with threading and pySerial
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2015-2016 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+"""\
+Support threading with serial ports.
+"""
+import serial
+import threading
+
+
+class Protocol(object):
+    """\
+    Protocol as used by the ReaderThread. This base class provides empty
+    implementations of all methods.
+    """
+
+    def connection_made(self, transport):
+        """Called when reader thread is started"""
+
+    def data_received(self, data):
+        """Called with snippets received from the serial port"""
+
+    def connection_lost(self, exc):
+        """\
+        Called when the serial port is closed or the reader loop terminated
+        otherwise.
+        """
+        if isinstance(exc, Exception):
+            raise exc
+
+
+class Packetizer(Protocol):
+    """
+    Read binary packets from serial port. Packets are expected to be terminated
+    with a TERMINATOR byte (null byte by default).
+
+    The class also keeps track of the transport.
+    """
+
+    TERMINATOR = b'\0'
+
+    def __init__(self):
+        self.buffer = bytearray()
+        self.transport = None
+
+    def connection_made(self, transport):
+        """Store transport"""
+        self.transport = transport
+
+    def connection_lost(self, exc):
+        """Forget transport"""
+        self.transport = None
+        super(Packetizer, self).connection_lost(exc)
+
+    def data_received(self, data):
+        """Buffer received data, find TERMINATOR, call handle_packet"""
+        self.buffer.extend(data)
+        while self.TERMINATOR in self.buffer:
+            packet, self.buffer = self.buffer.split(self.TERMINATOR, 1)
+            self.handle_packet(packet)
+
+    def handle_packet(self, packet):
+        """Process packets - to be overridden by subclassing"""
+        raise NotImplementedError('please implement functionality in handle_packet')
+
+
+class FramedPacket(Protocol):
+    """
+    Read binary packets. Packets are expected to have a start and stop marker.
+
+    The class also keeps track of the transport.
+    """
+
+    START = b'('
+    STOP = b')'
+
+    def __init__(self):
+        self.packet = bytearray()
+        self.in_packet = False
+        self.transport = None
+
+    def connection_made(self, transport):
+        """Store transport"""
+        self.transport = transport
+
+    def connection_lost(self, exc):
+        """Forget transport"""
+        self.transport = None
+        self.in_packet = False
+        del self.packet[:]
+        super(FramedPacket, self).connection_lost(exc)
+
+    def data_received(self, data):
+        """Find data enclosed in START/STOP, call handle_packet"""
+        for byte in serial.iterbytes(data):
+            if byte == self.START:
+                self.in_packet = True
+            elif byte == self.STOP:
+                self.in_packet = False
+                self.handle_packet(bytes(self.packet)) # make read-only copy
+                del self.packet[:]
+            elif self.in_packet:
+                self.packet.extend(byte)
+            else:
+                self.handle_out_of_packet_data(byte)
+
+    def handle_packet(self, packet):
+        """Process packets - to be overridden by subclassing"""
+        raise NotImplementedError('please implement functionality in handle_packet')
+
+    def handle_out_of_packet_data(self, data):
+        """Process data that is received outside of packets"""
+        pass
+
+
+class LineReader(Packetizer):
+    """
+    Read and write (Unicode) lines from/to serial port.
+    The encoding is applied.
+    """
+
+    TERMINATOR = b'\r\n'
+    ENCODING = 'utf-8'
+    UNICODE_HANDLING = 'replace'
+
+    def handle_packet(self, packet):
+        self.handle_line(packet.decode(self.ENCODING, self.UNICODE_HANDLING))
+
+    def handle_line(self, line):
+        """Process one line - to be overridden by subclassing"""
+        raise NotImplementedError('please implement functionality in handle_line')
+
+    def write_line(self, text):
+        """
+        Write text to the transport. ``text`` is a Unicode string and the encoding
+        is applied before sending ans also the newline is append.
+        """
+        # + is not the best choice but bytes does not support % or .format in py3 and we want a single write call
+        self.transport.write(text.encode(self.ENCODING, self.UNICODE_HANDLING) + self.TERMINATOR)
+
+
+class ReaderThread(threading.Thread):
+    """\
+    Implement a serial port read loop and dispatch to a Protocol instance (like
+    the asyncio.Protocol) but do it with threads.
+
+    Calls to close() will close the serial port but it is also possible to just
+    stop() this thread and continue the serial port instance otherwise.
+    """
+
+    def __init__(self, serial_instance, protocol_factory):
+        """\
+        Initialize thread.
+
+        Note that the serial_instance' timeout is set to one second!
+        Other settings are not changed.
+        """
+        super(ReaderThread, self).__init__()
+        self.daemon = True
+        self.serial = serial_instance
+        self.protocol_factory = protocol_factory
+        self.alive = True
+        self._lock = threading.Lock()
+        self._connection_made = threading.Event()
+        self.protocol = None
+
+    def stop(self):
+        """Stop the reader thread"""
+        self.alive = False
+        if hasattr(self.serial, 'cancel_read'):
+            self.serial.cancel_read()
+        self.join(2)
+
+    def run(self):
+        """Reader loop"""
+        if not hasattr(self.serial, 'cancel_read'):
+            self.serial.timeout = 1
+        self.protocol = self.protocol_factory()
+        try:
+            self.protocol.connection_made(self)
+        except Exception as e:
+            self.alive = False
+            self.protocol.connection_lost(e)
+            self._connection_made.set()
+            return
+        error = None
+        self._connection_made.set()
+        while self.alive and self.serial.is_open:
+            try:
+                # read all that is there or wait for one byte (blocking)
+                data = self.serial.read(self.serial.in_waiting or 1)
+            except serial.SerialException as e:
+                # probably some I/O problem such as disconnected USB serial
+                # adapters -> exit
+                error = e
+                break
+            else:
+                if data:
+                    # make a separated try-except for called used code
+                    try:
+                        self.protocol.data_received(data)
+                    except Exception as e:
+                        error = e
+                        break
+        self.alive = False
+        self.protocol.connection_lost(error)
+        self.protocol = None
+
+    def write(self, data):
+        """Thread safe writing (uses lock)"""
+        with self._lock:
+            self.serial.write(data)
+
+    def close(self):
+        """Close the serial port and exit reader thread (uses lock)"""
+        # use the lock to let other threads finish writing
+        with self._lock:
+            # first stop reading, so that closing can be done on idle port
+            self.stop()
+            self.serial.close()
+
+    def connect(self):
+        """
+        Wait until connection is set up and return the transport and protocol
+        instances.
+        """
+        if self.alive:
+            self._connection_made.wait()
+            if not self.alive:
+                raise RuntimeError('connection_lost already called')
+            return (self, self.protocol)
+        else:
+            raise RuntimeError('already stopped')
+
+    # - -  context manager, returns protocol
+
+    def __enter__(self):
+        """\
+        Enter context handler. May raise RuntimeError in case the connection
+        could not be created.
+        """
+        self.start()
+        self._connection_made.wait()
+        if not self.alive:
+            raise RuntimeError('connection_lost already called')
+        return self.protocol
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        """Leave context: close port"""
+        self.close()
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# test
+if __name__ == '__main__':
+    # pylint: disable=wrong-import-position
+    import sys
+    import time
+    import traceback
+
+    #~ PORT = 'spy:///dev/ttyUSB0'
+    PORT = 'loop://'
+
+    class PrintLines(LineReader):
+        def connection_made(self, transport):
+            super(PrintLines, self).connection_made(transport)
+            sys.stdout.write('port opened\n')
+            self.write_line('hello world')
+
+        def handle_line(self, data):
+            sys.stdout.write('line received: {!r}\n'.format(data))
+
+        def connection_lost(self, exc):
+            if exc:
+                traceback.print_exc(exc)
+            sys.stdout.write('port closed\n')
+
+    ser = serial.serial_for_url(PORT, baudrate=115200, timeout=1)
+    with ReaderThread(ser, PrintLines) as protocol:
+        protocol.write_line('hello')
+        time.sleep(2)
+
+    # alternative usage
+    ser = serial.serial_for_url(PORT, baudrate=115200, timeout=1)
+    t = ReaderThread(ser, PrintLines)
+    t.start()
+    transport, protocol = t.connect()
+    protocol.write_line('hello')
+    time.sleep(2)
+    t.close()

venv/lib/python3.11/site-packages/serial/tools/hexlify_codec.py

@@ -0,0 +1,124 @@
+#! python
+#
+# This is a codec to create and decode hexdumps with spaces between characters. used by miniterm.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2015-2016 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+"""\
+Python 'hex' Codec - 2-digit hex with spaces content transfer encoding.
+
+Encode and decode may be a bit missleading at first sight...
+
+The textual representation is a hex dump: e.g. "40 41"
+The "encoded" data of this is the binary form, e.g. b"@A"
+
+Therefore decoding is binary to text and thus converting binary data to hex dump.
+
+"""
+
+import codecs
+import serial
+
+
+try:
+    unicode
+except (NameError, AttributeError):
+    unicode = str       # for Python 3, pylint: disable=redefined-builtin,invalid-name
+
+
+HEXDIGITS = '0123456789ABCDEF'
+
+
+# Codec APIs
+
+def hex_encode(data, errors='strict'):
+    """'40 41 42' -> b'@ab'"""
+    return (serial.to_bytes([int(h, 16) for h in data.split()]), len(data))
+
+
+def hex_decode(data, errors='strict'):
+    """b'@ab' -> '40 41 42'"""
+    return (unicode(''.join('{:02X} '.format(ord(b)) for b in serial.iterbytes(data))), len(data))
+
+
+class Codec(codecs.Codec):
+    def encode(self, data, errors='strict'):
+        """'40 41 42' -> b'@ab'"""
+        return serial.to_bytes([int(h, 16) for h in data.split()])
+
+    def decode(self, data, errors='strict'):
+        """b'@ab' -> '40 41 42'"""
+        return unicode(''.join('{:02X} '.format(ord(b)) for b in serial.iterbytes(data)))
+
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+    """Incremental hex encoder"""
+
+    def __init__(self, errors='strict'):
+        self.errors = errors
+        self.state = 0
+
+    def reset(self):
+        self.state = 0
+
+    def getstate(self):
+        return self.state
+
+    def setstate(self, state):
+        self.state = state
+
+    def encode(self, data, final=False):
+        """\
+        Incremental encode, keep track of digits and emit a byte when a pair
+        of hex digits is found. The space is optional unless the error
+        handling is defined to be 'strict'.
+        """
+        state = self.state
+        encoded = []
+        for c in data.upper():
+            if c in HEXDIGITS:
+                z = HEXDIGITS.index(c)
+                if state:
+                    encoded.append(z + (state & 0xf0))
+                    state = 0
+                else:
+                    state = 0x100 + (z << 4)
+            elif c == ' ':      # allow spaces to separate values
+                if state and self.errors == 'strict':
+                    raise UnicodeError('odd number of hex digits')
+                state = 0
+            else:
+                if self.errors == 'strict':
+                    raise UnicodeError('non-hex digit found: {!r}'.format(c))
+        self.state = state
+        return serial.to_bytes(encoded)
+
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+    """Incremental decoder"""
+    def decode(self, data, final=False):
+        return unicode(''.join('{:02X} '.format(ord(b)) for b in serial.iterbytes(data)))
+
+
+class StreamWriter(Codec, codecs.StreamWriter):
+    """Combination of hexlify codec and StreamWriter"""
+
+
+class StreamReader(Codec, codecs.StreamReader):
+    """Combination of hexlify codec and StreamReader"""
+
+
+def getregentry():
+    """encodings module API"""
+    return codecs.CodecInfo(
+        name='hexlify',
+        encode=hex_encode,
+        decode=hex_decode,
+        incrementalencoder=IncrementalEncoder,
+        incrementaldecoder=IncrementalDecoder,
+        streamwriter=StreamWriter,
+        streamreader=StreamReader,
+        #~ _is_text_encoding=True,
+    )

venv/lib/python3.11/site-packages/serial/tools/list_ports.py

@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+#
+# Serial port enumeration. Console tool and backend selection.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2011-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+"""\
+This module will provide a function called comports that returns an
+iterable (generator or list) that will enumerate available com ports. Note that
+on some systems non-existent ports may be listed.
+
+Additionally a grep function is supplied that can be used to search for ports
+based on their descriptions or hardware ID.
+"""
+
+import sys
+import os
+import re
+
+# chose an implementation, depending on os
+#~ if sys.platform == 'cli':
+#~ else:
+if os.name == 'nt':  # sys.platform == 'win32':
+    from serial.tools.list_ports_windows import comports
+elif os.name == 'posix':
+    from serial.tools.list_ports_posix import comports
+#~ elif os.name == 'java':
+else:
+    raise ImportError("Sorry: no implementation for your platform ('{}') available".format(os.name))
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def grep(regexp, include_links=False):
+    """\
+    Search for ports using a regular expression. Port name, description and
+    hardware ID are searched. The function returns an iterable that returns the
+    same tuples as comport() would do.
+    """
+    r = re.compile(regexp, re.I)
+    for info in comports(include_links):
+        port, desc, hwid = info
+        if r.search(port) or r.search(desc) or r.search(hwid):
+            yield info
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+def main():
+    import argparse
+
+    parser = argparse.ArgumentParser(description='Serial port enumeration')
+
+    parser.add_argument(
+        'regexp',
+        nargs='?',
+        help='only show ports that match this regex')
+
+    parser.add_argument(
+        '-v', '--verbose',
+        action='store_true',
+        help='show more messages')
+
+    parser.add_argument(
+        '-q', '--quiet',
+        action='store_true',
+        help='suppress all messages')
+
+    parser.add_argument(
+        '-n',
+        type=int,
+        help='only output the N-th entry')
+
+    parser.add_argument(
+        '-s', '--include-links',
+        action='store_true',
+        help='include entries that are symlinks to real devices')
+
+    args = parser.parse_args()
+
+    hits = 0
+    # get iteraror w/ or w/o filter
+    if args.regexp:
+        if not args.quiet:
+            sys.stderr.write("Filtered list with regexp: {!r}\n".format(args.regexp))
+        iterator = sorted(grep(args.regexp, include_links=args.include_links))
+    else:
+        iterator = sorted(comports(include_links=args.include_links))
+    # list them
+    for n, (port, desc, hwid) in enumerate(iterator, 1):
+        if args.n is None or args.n == n:
+            sys.stdout.write("{:20}\n".format(port))
+            if args.verbose:
+                sys.stdout.write("    desc: {}\n".format(desc))
+                sys.stdout.write("    hwid: {}\n".format(hwid))
+        hits += 1
+    if not args.quiet:
+        if hits:
+            sys.stderr.write("{} ports found\n".format(hits))
+        else:
+            sys.stderr.write("no ports found\n")
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# test
+if __name__ == '__main__':
+    main()

venv/lib/python3.11/site-packages/serial/tools/list_ports_common.py

@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+#
+# This is a helper module for the various platform dependent list_port
+# implementations.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+import re
+import glob
+import os
+
+
+def numsplit(text):
+    """\
+    Convert string into a list of texts and numbers in order to support a
+    natural sorting.
+    """
+    result = []
+    for group in re.split(r'(\d+)', text):
+        if group:
+            try:
+                group = int(group)
+            except ValueError:
+                pass
+            result.append(group)
+    return result
+
+
+class ListPortInfo(object):
+    """Info collection base class for serial ports"""
+
+    def __init__(self, device=None):
+        self.device = device
+        self.name = None
+        self.description = 'n/a'
+        self.hwid = 'n/a'
+        # USB specific data
+        self.vid = None
+        self.pid = None
+        self.serial_number = None
+        self.location = None
+        self.manufacturer = None
+        self.product = None
+        self.interface = None
+        # special handling for links
+        if device is not None and os.path.islink(device):
+            self.hwid = 'LINK={}'.format(os.path.realpath(device))
+
+    def usb_description(self):
+        """return a short string to name the port based on USB info"""
+        if self.interface is not None:
+            return '{} - {}'.format(self.product, self.interface)
+        elif self.product is not None:
+            return self.product
+        else:
+            return self.name
+
+    def usb_info(self):
+        """return a string with USB related information about device"""
+        return 'USB VID:PID={:04X}:{:04X}{}{}'.format(
+            self.vid or 0,
+            self.pid or 0,
+            ' SER={}'.format(self.serial_number) if self.serial_number is not None else '',
+            ' LOCATION={}'.format(self.location) if self.location is not None else '')
+
+    def apply_usb_info(self):
+        """update description and hwid from USB data"""
+        self.description = self.usb_description()
+        self.hwid = self.usb_info()
+
+    def __eq__(self, other):
+        return self.device == other.device
+
+    def __lt__(self, other):
+        return numsplit(self.device) < numsplit(other.device)
+
+    def __str__(self):
+        return '{} - {}'.format(self.device, self.description)
+
+    def __getitem__(self, index):
+        """Item access: backwards compatible -> (port, desc, hwid)"""
+        if index == 0:
+            return self.device
+        elif index == 1:
+            return self.description
+        elif index == 2:
+            return self.hwid
+        else:
+            raise IndexError('{} > 2'.format(index))
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+def list_links(devices):
+    """\
+    search all /dev devices and look for symlinks to known ports already
+    listed in devices.
+    """
+    links = []
+    for device in glob.glob('/dev/*'):
+        if os.path.islink(device) and os.path.realpath(device) in devices:
+            links.append(device)
+    return links
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# test
+if __name__ == '__main__':
+    print(ListPortInfo('dummy'))

venv/lib/python3.11/site-packages/serial/tools/list_ports_linux.py

@@ -0,0 +1,107 @@
+#!/usr/bin/env python
+#
+# This is a module that gathers a list of serial ports including details on
+# GNU/Linux systems.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2011-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+import glob
+import os
+from serial.tools import list_ports_common
+
+
+class SysFS(list_ports_common.ListPortInfo):
+    """Wrapper for easy sysfs access and device info"""
+
+    def __init__(self, device):
+        super(SysFS, self).__init__(device)
+        # special handling for links
+        if device is not None and os.path.islink(device):
+            device = os.path.realpath(device)
+            is_link = True
+        else:
+            is_link = False
+        self.name = os.path.basename(device)
+        self.usb_device_path = None
+        if os.path.exists('/sys/class/tty/{}/device'.format(self.name)):
+            self.device_path = os.path.realpath('/sys/class/tty/{}/device'.format(self.name))
+            self.subsystem = os.path.basename(os.path.realpath(os.path.join(self.device_path, 'subsystem')))
+        else:
+            self.device_path = None
+            self.subsystem = None
+        # check device type
+        if self.subsystem == 'usb-serial':
+            self.usb_interface_path = os.path.dirname(self.device_path)
+        elif self.subsystem == 'usb':
+            self.usb_interface_path = self.device_path
+        else:
+            self.usb_interface_path = None
+        # fill-in info for USB devices
+        if self.usb_interface_path is not None:
+            self.usb_device_path = os.path.dirname(self.usb_interface_path)
+
+            try:
+                num_if = int(self.read_line(self.usb_device_path, 'bNumInterfaces'))
+            except ValueError:
+                num_if = 1
+
+            self.vid = int(self.read_line(self.usb_device_path, 'idVendor'), 16)
+            self.pid = int(self.read_line(self.usb_device_path, 'idProduct'), 16)
+            self.serial_number = self.read_line(self.usb_device_path, 'serial')
+            if num_if > 1:  # multi interface devices like FT4232
+                self.location = os.path.basename(self.usb_interface_path)
+            else:
+                self.location = os.path.basename(self.usb_device_path)
+
+            self.manufacturer = self.read_line(self.usb_device_path, 'manufacturer')
+            self.product = self.read_line(self.usb_device_path, 'product')
+            self.interface = self.read_line(self.device_path, 'interface')
+
+        if self.subsystem in ('usb', 'usb-serial'):
+            self.apply_usb_info()
+        #~ elif self.subsystem in ('pnp', 'amba'):  # PCI based devices, raspi
+        elif self.subsystem == 'pnp':  # PCI based devices
+            self.description = self.name
+            self.hwid = self.read_line(self.device_path, 'id')
+        elif self.subsystem == 'amba':  # raspi
+            self.description = self.name
+            self.hwid = os.path.basename(self.device_path)
+
+        if is_link:
+            self.hwid += ' LINK={}'.format(device)
+
+    def read_line(self, *args):
+        """\
+        Helper function to read a single line from a file.
+        One or more parameters are allowed, they are joined with os.path.join.
+        Returns None on errors..
+        """
+        try:
+            with open(os.path.join(*args)) as f:
+                line = f.readline().strip()
+            return line
+        except IOError:
+            return None
+
+
+def comports(include_links=False):
+    devices = glob.glob('/dev/ttyS*')           # built-in serial ports
+    devices.extend(glob.glob('/dev/ttyUSB*'))   # usb-serial with own driver
+    devices.extend(glob.glob('/dev/ttyACM*'))   # usb-serial with CDC-ACM profile
+    devices.extend(glob.glob('/dev/ttyAMA*'))   # ARM internal port (raspi)
+    devices.extend(glob.glob('/dev/rfcomm*'))   # BT serial devices
+    devices.extend(glob.glob('/dev/ttyAP*'))    # Advantech multi-port serial controllers
+    if include_links:
+        devices.extend(list_ports_common.list_links(devices))
+    return [info
+            for info in [SysFS(d) for d in devices]
+            if info.subsystem != "platform"]    # hide non-present internal serial ports
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# test
+if __name__ == '__main__':
+    for port, desc, hwid in sorted(comports()):
+        print("{}: {} [{}]".format(port, desc, hwid))

venv/lib/python3.11/site-packages/serial/tools/list_ports_osx.py

@@ -0,0 +1,260 @@
+#!/usr/bin/env python
+#
+# This is a module that gathers a list of serial ports including details on OSX
+#
+# code originally from https://github.com/makerbot/pyserial/tree/master/serial/tools
+# with contributions from cibomahto, dgs3, FarMcKon, tedbrandston
+# and modifications by cliechti, hoihu, hardkrash
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2013-2015
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+
+# List all of the callout devices in OS/X by querying IOKit.
+
+# See the following for a reference of how to do this:
+# http://developer.apple.com/library/mac/#documentation/DeviceDrivers/Conceptual/WorkingWSerial/WWSerial_SerialDevs/SerialDevices.html#//apple_ref/doc/uid/TP30000384-CIHGEAFD
+
+# More help from darwin_hid.py
+
+# Also see the 'IORegistryExplorer' for an idea of what we are actually searching
+
+import ctypes
+import ctypes.util
+
+from serial.tools import list_ports_common
+
+iokit = ctypes.cdll.LoadLibrary(ctypes.util.find_library('IOKit'))
+cf = ctypes.cdll.LoadLibrary(ctypes.util.find_library('CoreFoundation'))
+
+kIOMasterPortDefault = ctypes.c_void_p.in_dll(iokit, "kIOMasterPortDefault")
+kCFAllocatorDefault = ctypes.c_void_p.in_dll(cf, "kCFAllocatorDefault")
+
+kCFStringEncodingMacRoman = 0
+
+iokit.IOServiceMatching.restype = ctypes.c_void_p
+
+iokit.IOServiceGetMatchingServices.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
+iokit.IOServiceGetMatchingServices.restype = ctypes.c_void_p
+
+iokit.IORegistryEntryGetParentEntry.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
+
+iokit.IORegistryEntryCreateCFProperty.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_uint32]
+iokit.IORegistryEntryCreateCFProperty.restype = ctypes.c_void_p
+
+iokit.IORegistryEntryGetPath.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
+iokit.IORegistryEntryGetPath.restype = ctypes.c_void_p
+
+iokit.IORegistryEntryGetName.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
+iokit.IORegistryEntryGetName.restype = ctypes.c_void_p
+
+iokit.IOObjectGetClass.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
+iokit.IOObjectGetClass.restype = ctypes.c_void_p
+
+iokit.IOObjectRelease.argtypes = [ctypes.c_void_p]
+
+
+cf.CFStringCreateWithCString.argtypes = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_int32]
+cf.CFStringCreateWithCString.restype = ctypes.c_void_p
+
+cf.CFStringGetCStringPtr.argtypes = [ctypes.c_void_p, ctypes.c_uint32]
+cf.CFStringGetCStringPtr.restype = ctypes.c_char_p
+
+cf.CFNumberGetValue.argtypes = [ctypes.c_void_p, ctypes.c_uint32, ctypes.c_void_p]
+cf.CFNumberGetValue.restype = ctypes.c_void_p
+
+# void CFRelease ( CFTypeRef cf );
+cf.CFRelease.argtypes = [ctypes.c_void_p]
+cf.CFRelease.restype = None
+
+# CFNumber type defines
+kCFNumberSInt8Type = 1
+kCFNumberSInt16Type = 2
+kCFNumberSInt32Type = 3
+kCFNumberSInt64Type = 4
+
+
+def get_string_property(device_type, property):
+    """
+    Search the given device for the specified string property
+
+    @param device_type Type of Device
+    @param property String to search for
+    @return Python string containing the value, or None if not found.
+    """
+    key = cf.CFStringCreateWithCString(
+            kCFAllocatorDefault,
+            property.encode("mac_roman"),
+            kCFStringEncodingMacRoman)
+
+    CFContainer = iokit.IORegistryEntryCreateCFProperty(
+            device_type,
+            key,
+            kCFAllocatorDefault,
+            0)
+    output = None
+
+    if CFContainer:
+        output = cf.CFStringGetCStringPtr(CFContainer, 0)
+        if output is not None:
+            output = output.decode('mac_roman')
+        cf.CFRelease(CFContainer)
+    return output
+
+
+def get_int_property(device_type, property, cf_number_type):
+    """
+    Search the given device for the specified string property
+
+    @param device_type Device to search
+    @param property String to search for
+    @param cf_number_type CFType number
+
+    @return Python string containing the value, or None if not found.
+    """
+    key = cf.CFStringCreateWithCString(
+            kCFAllocatorDefault,
+            property.encode("mac_roman"),
+            kCFStringEncodingMacRoman)
+
+    CFContainer = iokit.IORegistryEntryCreateCFProperty(
+            device_type,
+            key,
+            kCFAllocatorDefault,
+            0)
+
+    if CFContainer:
+        if (cf_number_type == kCFNumberSInt32Type):
+            number = ctypes.c_uint32()
+        elif (cf_number_type == kCFNumberSInt16Type):
+            number = ctypes.c_uint16()
+        cf.CFNumberGetValue(CFContainer, cf_number_type, ctypes.byref(number))
+        cf.CFRelease(CFContainer)
+        return number.value
+    return None
+
+
+def IORegistryEntryGetName(device):
+    pathname = ctypes.create_string_buffer(100)  # TODO: Is this ok?
+    iokit.IOObjectGetClass(device, ctypes.byref(pathname))
+    return pathname.value
+
+
+def GetParentDeviceByType(device, parent_type):
+    """ Find the first parent of a device that implements the parent_type
+        @param IOService Service to inspect
+        @return Pointer to the parent type, or None if it was not found.
+    """
+    # First, try to walk up the IOService tree to find a parent of this device that is a IOUSBDevice.
+    parent_type = parent_type.encode('mac_roman')
+    while IORegistryEntryGetName(device) != parent_type:
+        parent = ctypes.c_void_p()
+        response = iokit.IORegistryEntryGetParentEntry(
+                device,
+                "IOService".encode("mac_roman"),
+                ctypes.byref(parent))
+        # If we weren't able to find a parent for the device, we're done.
+        if response != 0:
+            return None
+        device = parent
+    return device
+
+
+def GetIOServicesByType(service_type):
+    """
+    returns iterator over specified service_type
+    """
+    serial_port_iterator = ctypes.c_void_p()
+
+    iokit.IOServiceGetMatchingServices(
+            kIOMasterPortDefault,
+            iokit.IOServiceMatching(service_type.encode('mac_roman')),
+            ctypes.byref(serial_port_iterator))
+
+    services = []
+    while iokit.IOIteratorIsValid(serial_port_iterator):
+        service = iokit.IOIteratorNext(serial_port_iterator)
+        if not service:
+            break
+        services.append(service)
+    iokit.IOObjectRelease(serial_port_iterator)
+    return services
+
+
+def location_to_string(locationID):
+    """
+    helper to calculate port and bus number from locationID
+    """
+    loc = ['{}-'.format(locationID >> 24)]
+    while locationID & 0xf00000:
+        if len(loc) > 1:
+            loc.append('.')
+        loc.append('{}'.format((locationID >> 20) & 0xf))
+        locationID <<= 4
+    return ''.join(loc)
+
+
+class SuitableSerialInterface(object):
+    pass
+
+
+def scan_interfaces():
+    """
+    helper function to scan USB interfaces
+    returns a list of SuitableSerialInterface objects with name and id attributes
+    """
+    interfaces = []
+    for service in GetIOServicesByType('IOSerialBSDClient'):
+        device = get_string_property(service, "IOCalloutDevice")
+        if device:
+            usb_device = GetParentDeviceByType(service, "IOUSBInterface")
+            if usb_device:
+                name = get_string_property(usb_device, "USB Interface Name") or None
+                locationID = get_int_property(usb_device, "locationID", kCFNumberSInt32Type) or ''
+                i = SuitableSerialInterface()
+                i.id = locationID
+                i.name = name
+                interfaces.append(i)
+    return interfaces
+
+
+def search_for_locationID_in_interfaces(serial_interfaces, locationID):
+    for interface in serial_interfaces:
+        if (interface.id == locationID):
+            return interface.name
+    return None
+
+
+def comports(include_links=False):
+    # XXX include_links is currently ignored. are links in /dev even supported here?
+    # Scan for all iokit serial ports
+    services = GetIOServicesByType('IOSerialBSDClient')
+    ports = []
+    serial_interfaces = scan_interfaces()
+    for service in services:
+        # First, add the callout device file.
+        device = get_string_property(service, "IOCalloutDevice")
+        if device:
+            info = list_ports_common.ListPortInfo(device)
+            # If the serial port is implemented by IOUSBDevice
+            usb_device = GetParentDeviceByType(service, "IOUSBDevice")
+            if usb_device:
+                # fetch some useful informations from properties
+                info.vid = get_int_property(usb_device, "idVendor", kCFNumberSInt16Type)
+                info.pid = get_int_property(usb_device, "idProduct", kCFNumberSInt16Type)
+                info.serial_number = get_string_property(usb_device, "USB Serial Number")
+                info.product = get_string_property(usb_device, "USB Product Name") or 'n/a'
+                info.manufacturer = get_string_property(usb_device, "USB Vendor Name")
+                locationID = get_int_property(usb_device, "locationID", kCFNumberSInt32Type)
+                info.location = location_to_string(locationID)
+                info.interface = search_for_locationID_in_interfaces(serial_interfaces, locationID)
+                info.apply_usb_info()
+            ports.append(info)
+    return ports
+
+# test
+if __name__ == '__main__':
+    for port, desc, hwid in sorted(comports()):
+        print("{}: {} [{}]".format(port, desc, hwid))

venv/lib/python3.11/site-packages/serial/tools/list_ports_posix.py

@@ -0,0 +1,117 @@
+#!/usr/bin/env python
+#
+# This is a module that gathers a list of serial ports on POSIXy systems.
+# For some specific implementations, see also list_ports_linux, list_ports_osx
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2011-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+"""\
+The ``comports`` function is expected to return an iterable that yields tuples
+of 3 strings: port name, human readable description and a hardware ID.
+
+As currently no method is known to get the second two strings easily, they are
+currently just identical to the port name.
+"""
+
+import glob
+import sys
+import os
+from serial.tools import list_ports_common
+
+# try to detect the OS so that a device can be selected...
+plat = sys.platform.lower()
+
+if plat[:5] == 'linux':    # Linux (confirmed)  # noqa
+    from serial.tools.list_ports_linux import comports
+
+elif plat[:6] == 'darwin':   # OS X (confirmed)
+    from serial.tools.list_ports_osx import comports
+
+elif plat == 'cygwin':       # cygwin/win32
+    # cygwin accepts /dev/com* in many contexts
+    # (such as 'open' call, explicit 'ls'), but 'glob.glob'
+    # and bare 'ls' do not; so use /dev/ttyS* instead
+    def comports(include_links=False):
+        devices = glob.glob('/dev/ttyS*')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:7] == 'openbsd':    # OpenBSD
+    def comports(include_links=False):
+        devices = glob.glob('/dev/cua*')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:3] == 'bsd' or plat[:7] == 'freebsd':
+    def comports(include_links=False):
+        devices = glob.glob('/dev/cua*[!.init][!.lock]')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:6] == 'netbsd':   # NetBSD
+    def comports(include_links=False):
+        """scan for available ports. return a list of device names."""
+        devices = glob.glob('/dev/dty*')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:4] == 'irix':     # IRIX
+    def comports(include_links=False):
+        """scan for available ports. return a list of device names."""
+        devices = glob.glob('/dev/ttyf*')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:2] == 'hp':       # HP-UX (not tested)
+    def comports(include_links=False):
+        """scan for available ports. return a list of device names."""
+        devices = glob.glob('/dev/tty*p0')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:5] == 'sunos':    # Solaris/SunOS
+    def comports(include_links=False):
+        """scan for available ports. return a list of device names."""
+        devices = glob.glob('/dev/tty*c')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+elif plat[:3] == 'aix':      # AIX
+    def comports(include_links=False):
+        """scan for available ports. return a list of device names."""
+        devices = glob.glob('/dev/tty*')
+        if include_links:
+            devices.extend(list_ports_common.list_links(devices))
+        return [list_ports_common.ListPortInfo(d) for d in devices]
+
+else:
+    # platform detection has failed...
+    import serial
+    sys.stderr.write("""\
+don't know how to enumerate ttys on this system.
+! I you know how the serial ports are named send this information to
+! the author of this module:
+
+sys.platform = {!r}
+os.name = {!r}
+pySerial version = {}
+
+also add the naming scheme of the serial ports and with a bit luck you can get
+this module running...
+""".format(sys.platform, os.name, serial.VERSION))
+    raise ImportError("Sorry: no implementation for your platform ('{}') available".format(os.name))
+
+# test
+if __name__ == '__main__':
+    for port, desc, hwid in sorted(comports()):
+        print("{}: {} [{}]".format(port, desc, hwid))

venv/lib/python3.11/site-packages/serial/tools/list_ports_windows.py

@@ -0,0 +1,305 @@
+#! python
+#
+# Enumerate serial ports on Windows including a human readable description
+# and hardware information.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2016 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+# pylint: disable=invalid-name,too-few-public-methods
+import re
+import ctypes
+from ctypes.wintypes import BOOL
+from ctypes.wintypes import HWND
+from ctypes.wintypes import DWORD
+from ctypes.wintypes import WORD
+from ctypes.wintypes import LONG
+from ctypes.wintypes import ULONG
+from ctypes.wintypes import HKEY
+from ctypes.wintypes import BYTE
+import serial
+from serial.win32 import ULONG_PTR
+from serial.tools import list_ports_common
+
+
+def ValidHandle(value, func, arguments):
+    if value == 0:
+        raise ctypes.WinError()
+    return value
+
+
+NULL = 0
+HDEVINFO = ctypes.c_void_p
+LPCTSTR = ctypes.c_wchar_p
+PCTSTR = ctypes.c_wchar_p
+PTSTR = ctypes.c_wchar_p
+LPDWORD = PDWORD = ctypes.POINTER(DWORD)
+#~ LPBYTE = PBYTE = ctypes.POINTER(BYTE)
+LPBYTE = PBYTE = ctypes.c_void_p        # XXX avoids error about types
+
+ACCESS_MASK = DWORD
+REGSAM = ACCESS_MASK
+
+
+class GUID(ctypes.Structure):
+    _fields_ = [
+        ('Data1', DWORD),
+        ('Data2', WORD),
+        ('Data3', WORD),
+        ('Data4', BYTE * 8),
+    ]
+
+    def __str__(self):
+        return "{{{:08x}-{:04x}-{:04x}-{}-{}}}".format(
+            self.Data1,
+            self.Data2,
+            self.Data3,
+            ''.join(["{:02x}".format(d) for d in self.Data4[:2]]),
+            ''.join(["{:02x}".format(d) for d in self.Data4[2:]]),
+        )
+
+
+class SP_DEVINFO_DATA(ctypes.Structure):
+    _fields_ = [
+        ('cbSize', DWORD),
+        ('ClassGuid', GUID),
+        ('DevInst', DWORD),
+        ('Reserved', ULONG_PTR),
+    ]
+
+    def __str__(self):
+        return "ClassGuid:{} DevInst:{}".format(self.ClassGuid, self.DevInst)
+
+
+PSP_DEVINFO_DATA = ctypes.POINTER(SP_DEVINFO_DATA)
+
+PSP_DEVICE_INTERFACE_DETAIL_DATA = ctypes.c_void_p
+
+setupapi = ctypes.windll.LoadLibrary("setupapi")
+SetupDiDestroyDeviceInfoList = setupapi.SetupDiDestroyDeviceInfoList
+SetupDiDestroyDeviceInfoList.argtypes = [HDEVINFO]
+SetupDiDestroyDeviceInfoList.restype = BOOL
+
+SetupDiClassGuidsFromName = setupapi.SetupDiClassGuidsFromNameW
+SetupDiClassGuidsFromName.argtypes = [PCTSTR, ctypes.POINTER(GUID), DWORD, PDWORD]
+SetupDiClassGuidsFromName.restype = BOOL
+
+SetupDiEnumDeviceInfo = setupapi.SetupDiEnumDeviceInfo
+SetupDiEnumDeviceInfo.argtypes = [HDEVINFO, DWORD, PSP_DEVINFO_DATA]
+SetupDiEnumDeviceInfo.restype = BOOL
+
+SetupDiGetClassDevs = setupapi.SetupDiGetClassDevsW
+SetupDiGetClassDevs.argtypes = [ctypes.POINTER(GUID), PCTSTR, HWND, DWORD]
+SetupDiGetClassDevs.restype = HDEVINFO
+SetupDiGetClassDevs.errcheck = ValidHandle
+
+SetupDiGetDeviceRegistryProperty = setupapi.SetupDiGetDeviceRegistryPropertyW
+SetupDiGetDeviceRegistryProperty.argtypes = [HDEVINFO, PSP_DEVINFO_DATA, DWORD, PDWORD, PBYTE, DWORD, PDWORD]
+SetupDiGetDeviceRegistryProperty.restype = BOOL
+
+SetupDiGetDeviceInstanceId = setupapi.SetupDiGetDeviceInstanceIdW
+SetupDiGetDeviceInstanceId.argtypes = [HDEVINFO, PSP_DEVINFO_DATA, PTSTR, DWORD, PDWORD]
+SetupDiGetDeviceInstanceId.restype = BOOL
+
+SetupDiOpenDevRegKey = setupapi.SetupDiOpenDevRegKey
+SetupDiOpenDevRegKey.argtypes = [HDEVINFO, PSP_DEVINFO_DATA, DWORD, DWORD, DWORD, REGSAM]
+SetupDiOpenDevRegKey.restype = HKEY
+
+advapi32 = ctypes.windll.LoadLibrary("Advapi32")
+RegCloseKey = advapi32.RegCloseKey
+RegCloseKey.argtypes = [HKEY]
+RegCloseKey.restype = LONG
+
+RegQueryValueEx = advapi32.RegQueryValueExW
+RegQueryValueEx.argtypes = [HKEY, LPCTSTR , LPDWORD, LPDWORD, LPBYTE, LPDWORD]
+RegQueryValueEx.restype = LONG
+
+
+DIGCF_PRESENT = 2
+DIGCF_DEVICEINTERFACE = 16
+INVALID_HANDLE_VALUE = 0
+ERROR_INSUFFICIENT_BUFFER = 122
+SPDRP_HARDWAREID = 1
+SPDRP_FRIENDLYNAME = 12
+SPDRP_LOCATION_PATHS = 35
+SPDRP_MFG = 11
+DICS_FLAG_GLOBAL = 1
+DIREG_DEV = 0x00000001
+KEY_READ = 0x20019
+
+
+def iterate_comports():
+    """Return a generator that yields descriptions for serial ports"""
+    GUIDs = (GUID * 8)()  # so far only seen one used, so hope 8 are enough...
+    guids_size = DWORD()
+    if not SetupDiClassGuidsFromName(
+            "Ports",
+            GUIDs,
+            ctypes.sizeof(GUIDs),
+            ctypes.byref(guids_size)):
+        raise ctypes.WinError()
+
+    # repeat for all possible GUIDs
+    for index in range(guids_size.value):
+        bInterfaceNumber = None
+        g_hdi = SetupDiGetClassDevs(
+            ctypes.byref(GUIDs[index]),
+            None,
+            NULL,
+            DIGCF_PRESENT)  # was DIGCF_PRESENT|DIGCF_DEVICEINTERFACE which misses CDC ports
+
+        devinfo = SP_DEVINFO_DATA()
+        devinfo.cbSize = ctypes.sizeof(devinfo)
+        index = 0
+        while SetupDiEnumDeviceInfo(g_hdi, index, ctypes.byref(devinfo)):
+            index += 1
+
+            # get the real com port name
+            hkey = SetupDiOpenDevRegKey(
+                g_hdi,
+                ctypes.byref(devinfo),
+                DICS_FLAG_GLOBAL,
+                0,
+                DIREG_DEV,  # DIREG_DRV for SW info
+                KEY_READ)
+            port_name_buffer = ctypes.create_unicode_buffer(250)
+            port_name_length = ULONG(ctypes.sizeof(port_name_buffer))
+            RegQueryValueEx(
+                hkey,
+                "PortName",
+                None,
+                None,
+                ctypes.byref(port_name_buffer),
+                ctypes.byref(port_name_length))
+            RegCloseKey(hkey)
+
+            # unfortunately does this method also include parallel ports.
+            # we could check for names starting with COM or just exclude LPT
+            # and hope that other "unknown" names are serial ports...
+            if port_name_buffer.value.startswith('LPT'):
+                continue
+
+            # hardware ID
+            szHardwareID = ctypes.create_unicode_buffer(250)
+            # try to get ID that includes serial number
+            if not SetupDiGetDeviceInstanceId(
+                    g_hdi,
+                    ctypes.byref(devinfo),
+                    #~ ctypes.byref(szHardwareID),
+                    szHardwareID,
+                    ctypes.sizeof(szHardwareID) - 1,
+                    None):
+                # fall back to more generic hardware ID if that would fail
+                if not SetupDiGetDeviceRegistryProperty(
+                        g_hdi,
+                        ctypes.byref(devinfo),
+                        SPDRP_HARDWAREID,
+                        None,
+                        ctypes.byref(szHardwareID),
+                        ctypes.sizeof(szHardwareID) - 1,
+                        None):
+                    # Ignore ERROR_INSUFFICIENT_BUFFER
+                    if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
+                        raise ctypes.WinError()
+            # stringify
+            szHardwareID_str = szHardwareID.value
+
+            info = list_ports_common.ListPortInfo(port_name_buffer.value)
+
+            # in case of USB, make a more readable string, similar to that form
+            # that we also generate on other platforms
+            if szHardwareID_str.startswith('USB'):
+                m = re.search(r'VID_([0-9a-f]{4})(&PID_([0-9a-f]{4}))?(&MI_(\d{2}))?(\\(\w+))?', szHardwareID_str, re.I)
+                if m:
+                    info.vid = int(m.group(1), 16)
+                    if m.group(3):
+                        info.pid = int(m.group(3), 16)
+                    if m.group(5):
+                        bInterfaceNumber = int(m.group(5))
+                    if m.group(7):
+                        info.serial_number = m.group(7)
+                # calculate a location string
+                loc_path_str = ctypes.create_unicode_buffer(250)
+                if SetupDiGetDeviceRegistryProperty(
+                        g_hdi,
+                        ctypes.byref(devinfo),
+                        SPDRP_LOCATION_PATHS,
+                        None,
+                        ctypes.byref(loc_path_str),
+                        ctypes.sizeof(loc_path_str) - 1,
+                        None):
+                    m = re.finditer(r'USBROOT\((\w+)\)|#USB\((\w+)\)', loc_path_str.value)
+                    location = []
+                    for g in m:
+                        if g.group(1):
+                            location.append('{:d}'.format(int(g.group(1)) + 1))
+                        else:
+                            if len(location) > 1:
+                                location.append('.')
+                            else:
+                                location.append('-')
+                            location.append(g.group(2))
+                    if bInterfaceNumber is not None:
+                        location.append(':{}.{}'.format(
+                            'x',  # XXX how to determine correct bConfigurationValue?
+                            bInterfaceNumber))
+                    if location:
+                        info.location = ''.join(location)
+                info.hwid = info.usb_info()
+            elif szHardwareID_str.startswith('FTDIBUS'):
+                m = re.search(r'VID_([0-9a-f]{4})\+PID_([0-9a-f]{4})(\+(\w+))?', szHardwareID_str, re.I)
+                if m:
+                    info.vid = int(m.group(1), 16)
+                    info.pid = int(m.group(2), 16)
+                    if m.group(4):
+                        info.serial_number = m.group(4)
+                # USB location is hidden by FDTI driver :(
+                info.hwid = info.usb_info()
+            else:
+                info.hwid = szHardwareID_str
+
+            # friendly name
+            szFriendlyName = ctypes.create_unicode_buffer(250)
+            if SetupDiGetDeviceRegistryProperty(
+                    g_hdi,
+                    ctypes.byref(devinfo),
+                    SPDRP_FRIENDLYNAME,
+                    #~ SPDRP_DEVICEDESC,
+                    None,
+                    ctypes.byref(szFriendlyName),
+                    ctypes.sizeof(szFriendlyName) - 1,
+                    None):
+                info.description = szFriendlyName.value
+            #~ else:
+                # Ignore ERROR_INSUFFICIENT_BUFFER
+                #~ if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
+                    #~ raise IOError("failed to get details for %s (%s)" % (devinfo, szHardwareID.value))
+                # ignore errors and still include the port in the list, friendly name will be same as port name
+
+            # manufacturer
+            szManufacturer = ctypes.create_unicode_buffer(250)
+            if SetupDiGetDeviceRegistryProperty(
+                    g_hdi,
+                    ctypes.byref(devinfo),
+                    SPDRP_MFG,
+                    #~ SPDRP_DEVICEDESC,
+                    None,
+                    ctypes.byref(szManufacturer),
+                    ctypes.sizeof(szManufacturer) - 1,
+                    None):
+                info.manufacturer = szManufacturer.value
+            yield info
+        SetupDiDestroyDeviceInfoList(g_hdi)
+
+
+def comports(include_links=False):
+    """Return a list of info objects about serial ports"""
+    return list(iterate_comports())
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# test
+if __name__ == '__main__':
+    for port, desc, hwid in sorted(comports()):
+        print("{}: {} [{}]".format(port, desc, hwid))

venv/lib/python3.11/site-packages/serial/tools/miniterm.py

@@ -0,0 +1,976 @@
+#!/usr/bin/env python
+#
+# Very simple serial terminal
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C)2002-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+import codecs
+import os
+import sys
+import threading
+
+import serial
+from serial.tools.list_ports import comports
+from serial.tools import hexlify_codec
+
+# pylint: disable=wrong-import-order,wrong-import-position
+
+codecs.register(lambda c: hexlify_codec.getregentry() if c == 'hexlify' else None)
+
+try:
+    raw_input
+except NameError:
+    # pylint: disable=redefined-builtin,invalid-name
+    raw_input = input   # in python3 it's "raw"
+    unichr = chr
+
+
+def key_description(character):
+    """generate a readable description for a key"""
+    ascii_code = ord(character)
+    if ascii_code < 32:
+        return 'Ctrl+{:c}'.format(ord('@') + ascii_code)
+    else:
+        return repr(character)
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+class ConsoleBase(object):
+    """OS abstraction for console (input/output codec, no echo)"""
+
+    def __init__(self):
+        if sys.version_info >= (3, 0):
+            self.byte_output = sys.stdout.buffer
+        else:
+            self.byte_output = sys.stdout
+        self.output = sys.stdout
+
+    def setup(self):
+        """Set console to read single characters, no echo"""
+
+    def cleanup(self):
+        """Restore default console settings"""
+
+    def getkey(self):
+        """Read a single key from the console"""
+        return None
+
+    def write_bytes(self, byte_string):
+        """Write bytes (already encoded)"""
+        self.byte_output.write(byte_string)
+        self.byte_output.flush()
+
+    def write(self, text):
+        """Write string"""
+        self.output.write(text)
+        self.output.flush()
+
+    def cancel(self):
+        """Cancel getkey operation"""
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+    # context manager:
+    # switch terminal temporary to normal mode (e.g. to get user input)
+
+    def __enter__(self):
+        self.cleanup()
+        return self
+
+    def __exit__(self, *args, **kwargs):
+        self.setup()
+
+
+if os.name == 'nt':  # noqa
+    import msvcrt
+    import ctypes
+
+    class Out(object):
+        """file-like wrapper that uses os.write"""
+
+        def __init__(self, fd):
+            self.fd = fd
+
+        def flush(self):
+            pass
+
+        def write(self, s):
+            os.write(self.fd, s)
+
+    class Console(ConsoleBase):
+        def __init__(self):
+            super(Console, self).__init__()
+            self._saved_ocp = ctypes.windll.kernel32.GetConsoleOutputCP()
+            self._saved_icp = ctypes.windll.kernel32.GetConsoleCP()
+            ctypes.windll.kernel32.SetConsoleOutputCP(65001)
+            ctypes.windll.kernel32.SetConsoleCP(65001)
+            self.output = codecs.getwriter('UTF-8')(Out(sys.stdout.fileno()), 'replace')
+            # the change of the code page is not propagated to Python, manually fix it
+            sys.stderr = codecs.getwriter('UTF-8')(Out(sys.stderr.fileno()), 'replace')
+            sys.stdout = self.output
+            self.output.encoding = 'UTF-8'  # needed for input
+
+        def __del__(self):
+            ctypes.windll.kernel32.SetConsoleOutputCP(self._saved_ocp)
+            ctypes.windll.kernel32.SetConsoleCP(self._saved_icp)
+
+        def getkey(self):
+            while True:
+                z = msvcrt.getwch()
+                if z == unichr(13):
+                    return unichr(10)
+                elif z in (unichr(0), unichr(0x0e)):    # functions keys, ignore
+                    msvcrt.getwch()
+                else:
+                    return z
+
+        def cancel(self):
+            # CancelIo, CancelSynchronousIo do not seem to work when using
+            # getwch, so instead, send a key to the window with the console
+            hwnd = ctypes.windll.kernel32.GetConsoleWindow()
+            ctypes.windll.user32.PostMessageA(hwnd, 0x100, 0x0d, 0)
+
+elif os.name == 'posix':
+    import atexit
+    import termios
+    import fcntl
+
+    class Console(ConsoleBase):
+        def __init__(self):
+            super(Console, self).__init__()
+            self.fd = sys.stdin.fileno()
+            self.old = termios.tcgetattr(self.fd)
+            atexit.register(self.cleanup)
+            if sys.version_info < (3, 0):
+                self.enc_stdin = codecs.getreader(sys.stdin.encoding)(sys.stdin)
+            else:
+                self.enc_stdin = sys.stdin
+
+        def setup(self):
+            new = termios.tcgetattr(self.fd)
+            new[3] = new[3] & ~termios.ICANON & ~termios.ECHO & ~termios.ISIG
+            new[6][termios.VMIN] = 1
+            new[6][termios.VTIME] = 0
+            termios.tcsetattr(self.fd, termios.TCSANOW, new)
+
+        def getkey(self):
+            c = self.enc_stdin.read(1)
+            if c == unichr(0x7f):
+                c = unichr(8)    # map the BS key (which yields DEL) to backspace
+            return c
+
+        def cancel(self):
+            fcntl.ioctl(self.fd, termios.TIOCSTI, b'\0')
+
+        def cleanup(self):
+            termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.old)
+
+else:
+    raise NotImplementedError(
+        'Sorry no implementation for your platform ({}) available.'.format(sys.platform))
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+class Transform(object):
+    """do-nothing: forward all data unchanged"""
+    def rx(self, text):
+        """text received from serial port"""
+        return text
+
+    def tx(self, text):
+        """text to be sent to serial port"""
+        return text
+
+    def echo(self, text):
+        """text to be sent but displayed on console"""
+        return text
+
+
+class CRLF(Transform):
+    """ENTER sends CR+LF"""
+
+    def tx(self, text):
+        return text.replace('\n', '\r\n')
+
+
+class CR(Transform):
+    """ENTER sends CR"""
+
+    def rx(self, text):
+        return text.replace('\r', '\n')
+
+    def tx(self, text):
+        return text.replace('\n', '\r')
+
+
+class LF(Transform):
+    """ENTER sends LF"""
+
+
+class NoTerminal(Transform):
+    """remove typical terminal control codes from input"""
+
+    REPLACEMENT_MAP = dict((x, 0x2400 + x) for x in range(32) if unichr(x) not in '\r\n\b\t')
+    REPLACEMENT_MAP.update(
+        {
+            0x7F: 0x2421,  # DEL
+            0x9B: 0x2425,  # CSI
+        })
+
+    def rx(self, text):
+        return text.translate(self.REPLACEMENT_MAP)
+
+    echo = rx
+
+
+class NoControls(NoTerminal):
+    """Remove all control codes, incl. CR+LF"""
+
+    REPLACEMENT_MAP = dict((x, 0x2400 + x) for x in range(32))
+    REPLACEMENT_MAP.update(
+        {
+            0x20: 0x2423,  # visual space
+            0x7F: 0x2421,  # DEL
+            0x9B: 0x2425,  # CSI
+        })
+
+
+class Printable(Transform):
+    """Show decimal code for all non-ASCII characters and replace most control codes"""
+
+    def rx(self, text):
+        r = []
+        for c in text:
+            if ' ' <= c < '\x7f' or c in '\r\n\b\t':
+                r.append(c)
+            elif c < ' ':
+                r.append(unichr(0x2400 + ord(c)))
+            else:
+                r.extend(unichr(0x2080 + ord(d) - 48) for d in '{:d}'.format(ord(c)))
+                r.append(' ')
+        return ''.join(r)
+
+    echo = rx
+
+
+class Colorize(Transform):
+    """Apply different colors for received and echo"""
+
+    def __init__(self):
+        # XXX make it configurable, use colorama?
+        self.input_color = '\x1b[37m'
+        self.echo_color = '\x1b[31m'
+
+    def rx(self, text):
+        return self.input_color + text
+
+    def echo(self, text):
+        return self.echo_color + text
+
+
+class DebugIO(Transform):
+    """Print what is sent and received"""
+
+    def rx(self, text):
+        sys.stderr.write(' [RX:{}] '.format(repr(text)))
+        sys.stderr.flush()
+        return text
+
+    def tx(self, text):
+        sys.stderr.write(' [TX:{}] '.format(repr(text)))
+        sys.stderr.flush()
+        return text
+
+
+# other ideas:
+# - add date/time for each newline
+# - insert newline after: a) timeout b) packet end character
+
+EOL_TRANSFORMATIONS = {
+    'crlf': CRLF,
+    'cr': CR,
+    'lf': LF,
+}
+
+TRANSFORMATIONS = {
+    'direct': Transform,    # no transformation
+    'default': NoTerminal,
+    'nocontrol': NoControls,
+    'printable': Printable,
+    'colorize': Colorize,
+    'debug': DebugIO,
+}
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+def ask_for_port():
+    """\
+    Show a list of ports and ask the user for a choice. To make selection
+    easier on systems with long device names, also allow the input of an
+    index.
+    """
+    sys.stderr.write('\n--- Available ports:\n')
+    ports = []
+    for n, (port, desc, hwid) in enumerate(sorted(comports()), 1):
+        sys.stderr.write('--- {:2}: {:20} {!r}\n'.format(n, port, desc))
+        ports.append(port)
+    while True:
+        port = raw_input('--- Enter port index or full name: ')
+        try:
+            index = int(port) - 1
+            if not 0 <= index < len(ports):
+                sys.stderr.write('--- Invalid index!\n')
+                continue
+        except ValueError:
+            pass
+        else:
+            port = ports[index]
+        return port
+
+
+class Miniterm(object):
+    """\
+    Terminal application. Copy data from serial port to console and vice versa.
+    Handle special keys from the console to show menu etc.
+    """
+
+    def __init__(self, serial_instance, echo=False, eol='crlf', filters=()):
+        self.console = Console()
+        self.serial = serial_instance
+        self.echo = echo
+        self.raw = False
+        self.input_encoding = 'UTF-8'
+        self.output_encoding = 'UTF-8'
+        self.eol = eol
+        self.filters = filters
+        self.update_transformations()
+        self.exit_character = 0x1d  # GS/CTRL+]
+        self.menu_character = 0x14  # Menu: CTRL+T
+        self.alive = None
+        self._reader_alive = None
+        self.receiver_thread = None
+        self.rx_decoder = None
+        self.tx_decoder = None
+
+    def _start_reader(self):
+        """Start reader thread"""
+        self._reader_alive = True
+        # start serial->console thread
+        self.receiver_thread = threading.Thread(target=self.reader, name='rx')
+        self.receiver_thread.daemon = True
+        self.receiver_thread.start()
+
+    def _stop_reader(self):
+        """Stop reader thread only, wait for clean exit of thread"""
+        self._reader_alive = False
+        if hasattr(self.serial, 'cancel_read'):
+            self.serial.cancel_read()
+        self.receiver_thread.join()
+
+    def start(self):
+        """start worker threads"""
+        self.alive = True
+        self._start_reader()
+        # enter console->serial loop
+        self.transmitter_thread = threading.Thread(target=self.writer, name='tx')
+        self.transmitter_thread.daemon = True
+        self.transmitter_thread.start()
+        self.console.setup()
+
+    def stop(self):
+        """set flag to stop worker threads"""
+        self.alive = False
+
+    def join(self, transmit_only=False):
+        """wait for worker threads to terminate"""
+        self.transmitter_thread.join()
+        if not transmit_only:
+            if hasattr(self.serial, 'cancel_read'):
+                self.serial.cancel_read()
+            self.receiver_thread.join()
+
+    def close(self):
+        self.serial.close()
+
+    def update_transformations(self):
+        """take list of transformation classes and instantiate them for rx and tx"""
+        transformations = [EOL_TRANSFORMATIONS[self.eol]] + [TRANSFORMATIONS[f]
+                                                             for f in self.filters]
+        self.tx_transformations = [t() for t in transformations]
+        self.rx_transformations = list(reversed(self.tx_transformations))
+
+    def set_rx_encoding(self, encoding, errors='replace'):
+        """set encoding for received data"""
+        self.input_encoding = encoding
+        self.rx_decoder = codecs.getincrementaldecoder(encoding)(errors)
+
+    def set_tx_encoding(self, encoding, errors='replace'):
+        """set encoding for transmitted data"""
+        self.output_encoding = encoding
+        self.tx_encoder = codecs.getincrementalencoder(encoding)(errors)
+
+    def dump_port_settings(self):
+        """Write current settings to sys.stderr"""
+        sys.stderr.write("\n--- Settings: {p.name}  {p.baudrate},{p.bytesize},{p.parity},{p.stopbits}\n".format(
+            p=self.serial))
+        sys.stderr.write('--- RTS: {:8}  DTR: {:8}  BREAK: {:8}\n'.format(
+            ('active' if self.serial.rts else 'inactive'),
+            ('active' if self.serial.dtr else 'inactive'),
+            ('active' if self.serial.break_condition else 'inactive')))
+        try:
+            sys.stderr.write('--- CTS: {:8}  DSR: {:8}  RI: {:8}  CD: {:8}\n'.format(
+                ('active' if self.serial.cts else 'inactive'),
+                ('active' if self.serial.dsr else 'inactive'),
+                ('active' if self.serial.ri else 'inactive'),
+                ('active' if self.serial.cd else 'inactive')))
+        except serial.SerialException:
+            # on RFC 2217 ports, it can happen if no modem state notification was
+            # yet received. ignore this error.
+            pass
+        sys.stderr.write('--- software flow control: {}\n'.format('active' if self.serial.xonxoff else 'inactive'))
+        sys.stderr.write('--- hardware flow control: {}\n'.format('active' if self.serial.rtscts else 'inactive'))
+        sys.stderr.write('--- serial input encoding: {}\n'.format(self.input_encoding))
+        sys.stderr.write('--- serial output encoding: {}\n'.format(self.output_encoding))
+        sys.stderr.write('--- EOL: {}\n'.format(self.eol.upper()))
+        sys.stderr.write('--- filters: {}\n'.format(' '.join(self.filters)))
+
+    def reader(self):
+        """loop and copy serial->console"""
+        try:
+            while self.alive and self._reader_alive:
+                # read all that is there or wait for one byte
+                data = self.serial.read(self.serial.in_waiting or 1)
+                if data:
+                    if self.raw:
+                        self.console.write_bytes(data)
+                    else:
+                        text = self.rx_decoder.decode(data)
+                        for transformation in self.rx_transformations:
+                            text = transformation.rx(text)
+                        self.console.write(text)
+        except serial.SerialException:
+            self.alive = False
+            self.console.cancel()
+            raise       # XXX handle instead of re-raise?
+
+    def writer(self):
+        """\
+        Loop and copy console->serial until self.exit_character character is
+        found. When self.menu_character is found, interpret the next key
+        locally.
+        """
+        menu_active = False
+        try:
+            while self.alive:
+                try:
+                    c = self.console.getkey()
+                except KeyboardInterrupt:
+                    c = '\x03'
+                if not self.alive:
+                    break
+                if menu_active:
+                    self.handle_menu_key(c)
+                    menu_active = False
+                elif c == self.menu_character:
+                    menu_active = True      # next char will be for menu
+                elif c == self.exit_character:
+                    self.stop()             # exit app
+                    break
+                else:
+                    #~ if self.raw:
+                    text = c
+                    for transformation in self.tx_transformations:
+                        text = transformation.tx(text)
+                    self.serial.write(self.tx_encoder.encode(text))
+                    if self.echo:
+                        echo_text = c
+                        for transformation in self.tx_transformations:
+                            echo_text = transformation.echo(echo_text)
+                        self.console.write(echo_text)
+        except:
+            self.alive = False
+            raise
+
+    def handle_menu_key(self, c):
+        """Implement a simple menu / settings"""
+        if c == self.menu_character or c == self.exit_character:
+            # Menu/exit character again -> send itself
+            self.serial.write(self.tx_encoder.encode(c))
+            if self.echo:
+                self.console.write(c)
+        elif c == '\x15':                       # CTRL+U -> upload file
+            self.upload_file()
+        elif c in '\x08hH?':                    # CTRL+H, h, H, ? -> Show help
+            sys.stderr.write(self.get_help_text())
+        elif c == '\x12':                       # CTRL+R -> Toggle RTS
+            self.serial.rts = not self.serial.rts
+            sys.stderr.write('--- RTS {} ---\n'.format('active' if self.serial.rts else 'inactive'))
+        elif c == '\x04':                       # CTRL+D -> Toggle DTR
+            self.serial.dtr = not self.serial.dtr
+            sys.stderr.write('--- DTR {} ---\n'.format('active' if self.serial.dtr else 'inactive'))
+        elif c == '\x02':                       # CTRL+B -> toggle BREAK condition
+            self.serial.break_condition = not self.serial.break_condition
+            sys.stderr.write('--- BREAK {} ---\n'.format('active' if self.serial.break_condition else 'inactive'))
+        elif c == '\x05':                       # CTRL+E -> toggle local echo
+            self.echo = not self.echo
+            sys.stderr.write('--- local echo {} ---\n'.format('active' if self.echo else 'inactive'))
+        elif c == '\x06':                       # CTRL+F -> edit filters
+            self.change_filter()
+        elif c == '\x0c':                       # CTRL+L -> EOL mode
+            modes = list(EOL_TRANSFORMATIONS)  # keys
+            eol = modes.index(self.eol) + 1
+            if eol >= len(modes):
+                eol = 0
+            self.eol = modes[eol]
+            sys.stderr.write('--- EOL: {} ---\n'.format(self.eol.upper()))
+            self.update_transformations()
+        elif c == '\x01':                       # CTRL+A -> set encoding
+            self.change_encoding()
+        elif c == '\x09':                       # CTRL+I -> info
+            self.dump_port_settings()
+        #~ elif c == '\x01':                       # CTRL+A -> cycle escape mode
+        #~ elif c == '\x0c':                       # CTRL+L -> cycle linefeed mode
+        elif c in 'pP':                         # P -> change port
+            self.change_port()
+        elif c in 'sS':                         # S -> suspend / open port temporarily
+            self.suspend_port()
+        elif c in 'bB':                         # B -> change baudrate
+            self.change_baudrate()
+        elif c == '8':                          # 8 -> change to 8 bits
+            self.serial.bytesize = serial.EIGHTBITS
+            self.dump_port_settings()
+        elif c == '7':                          # 7 -> change to 8 bits
+            self.serial.bytesize = serial.SEVENBITS
+            self.dump_port_settings()
+        elif c in 'eE':                         # E -> change to even parity
+            self.serial.parity = serial.PARITY_EVEN
+            self.dump_port_settings()
+        elif c in 'oO':                         # O -> change to odd parity
+            self.serial.parity = serial.PARITY_ODD
+            self.dump_port_settings()
+        elif c in 'mM':                         # M -> change to mark parity
+            self.serial.parity = serial.PARITY_MARK
+            self.dump_port_settings()
+        elif c in 'sS':                         # S -> change to space parity
+            self.serial.parity = serial.PARITY_SPACE
+            self.dump_port_settings()
+        elif c in 'nN':                         # N -> change to no parity
+            self.serial.parity = serial.PARITY_NONE
+            self.dump_port_settings()
+        elif c == '1':                          # 1 -> change to 1 stop bits
+            self.serial.stopbits = serial.STOPBITS_ONE
+            self.dump_port_settings()
+        elif c == '2':                          # 2 -> change to 2 stop bits
+            self.serial.stopbits = serial.STOPBITS_TWO
+            self.dump_port_settings()
+        elif c == '3':                          # 3 -> change to 1.5 stop bits
+            self.serial.stopbits = serial.STOPBITS_ONE_POINT_FIVE
+            self.dump_port_settings()
+        elif c in 'xX':                         # X -> change software flow control
+            self.serial.xonxoff = (c == 'X')
+            self.dump_port_settings()
+        elif c in 'rR':                         # R -> change hardware flow control
+            self.serial.rtscts = (c == 'R')
+            self.dump_port_settings()
+        else:
+            sys.stderr.write('--- unknown menu character {} --\n'.format(key_description(c)))
+
+    def upload_file(self):
+        """Ask user for filenname and send its contents"""
+        sys.stderr.write('\n--- File to upload: ')
+        sys.stderr.flush()
+        with self.console:
+            filename = sys.stdin.readline().rstrip('\r\n')
+            if filename:
+                try:
+                    with open(filename, 'rb') as f:
+                        sys.stderr.write('--- Sending file {} ---\n'.format(filename))
+                        while True:
+                            block = f.read(1024)
+                            if not block:
+                                break
+                            self.serial.write(block)
+                            # Wait for output buffer to drain.
+                            self.serial.flush()
+                            sys.stderr.write('.')   # Progress indicator.
+                    sys.stderr.write('\n--- File {} sent ---\n'.format(filename))
+                except IOError as e:
+                    sys.stderr.write('--- ERROR opening file {}: {} ---\n'.format(filename, e))
+
+    def change_filter(self):
+        """change the i/o transformations"""
+        sys.stderr.write('\n--- Available Filters:\n')
+        sys.stderr.write('\n'.join(
+            '---   {:<10} = {.__doc__}'.format(k, v)
+            for k, v in sorted(TRANSFORMATIONS.items())))
+        sys.stderr.write('\n--- Enter new filter name(s) [{}]: '.format(' '.join(self.filters)))
+        with self.console:
+            new_filters = sys.stdin.readline().lower().split()
+        if new_filters:
+            for f in new_filters:
+                if f not in TRANSFORMATIONS:
+                    sys.stderr.write('--- unknown filter: {}\n'.format(repr(f)))
+                    break
+            else:
+                self.filters = new_filters
+                self.update_transformations()
+        sys.stderr.write('--- filters: {}\n'.format(' '.join(self.filters)))
+
+    def change_encoding(self):
+        """change encoding on the serial port"""
+        sys.stderr.write('\n--- Enter new encoding name [{}]: '.format(self.input_encoding))
+        with self.console:
+            new_encoding = sys.stdin.readline().strip()
+        if new_encoding:
+            try:
+                codecs.lookup(new_encoding)
+            except LookupError:
+                sys.stderr.write('--- invalid encoding name: {}\n'.format(new_encoding))
+            else:
+                self.set_rx_encoding(new_encoding)
+                self.set_tx_encoding(new_encoding)
+        sys.stderr.write('--- serial input encoding: {}\n'.format(self.input_encoding))
+        sys.stderr.write('--- serial output encoding: {}\n'.format(self.output_encoding))
+
+    def change_baudrate(self):
+        """change the baudrate"""
+        sys.stderr.write('\n--- Baudrate: ')
+        sys.stderr.flush()
+        with self.console:
+            backup = self.serial.baudrate
+            try:
+                self.serial.baudrate = int(sys.stdin.readline().strip())
+            except ValueError as e:
+                sys.stderr.write('--- ERROR setting baudrate: {} ---\n'.format(e))
+                self.serial.baudrate = backup
+            else:
+                self.dump_port_settings()
+
+    def change_port(self):
+        """Have a conversation with the user to change the serial port"""
+        with self.console:
+            try:
+                port = ask_for_port()
+            except KeyboardInterrupt:
+                port = None
+        if port and port != self.serial.port:
+            # reader thread needs to be shut down
+            self._stop_reader()
+            # save settings
+            settings = self.serial.getSettingsDict()
+            try:
+                new_serial = serial.serial_for_url(port, do_not_open=True)
+                # restore settings and open
+                new_serial.applySettingsDict(settings)
+                new_serial.rts = self.serial.rts
+                new_serial.dtr = self.serial.dtr
+                new_serial.open()
+                new_serial.break_condition = self.serial.break_condition
+            except Exception as e:
+                sys.stderr.write('--- ERROR opening new port: {} ---\n'.format(e))
+                new_serial.close()
+            else:
+                self.serial.close()
+                self.serial = new_serial
+                sys.stderr.write('--- Port changed to: {} ---\n'.format(self.serial.port))
+            # and restart the reader thread
+            self._start_reader()
+
+    def suspend_port(self):
+        """\
+        open port temporarily, allow reconnect, exit and port change to get
+        out of the loop
+        """
+        # reader thread needs to be shut down
+        self._stop_reader()
+        self.serial.close()
+        sys.stderr.write('\n--- Port closed: {} ---\n'.format(self.serial.port))
+        do_change_port = False
+        while not self.serial.is_open:
+            sys.stderr.write('--- Quit: {exit} | p: port change | any other key to reconnect ---\n'.format(
+                exit=key_description(self.exit_character)))
+            k = self.console.getkey()
+            if k == self.exit_character:
+                self.stop()             # exit app
+                break
+            elif k in 'pP':
+                do_change_port = True
+                break
+            try:
+                self.serial.open()
+            except Exception as e:
+                sys.stderr.write('--- ERROR opening port: {} ---\n'.format(e))
+        if do_change_port:
+            self.change_port()
+        else:
+            # and restart the reader thread
+            self._start_reader()
+            sys.stderr.write('--- Port opened: {} ---\n'.format(self.serial.port))
+
+    def get_help_text(self):
+        """return the help text"""
+        # help text, starts with blank line!
+        return """
+--- pySerial ({version}) - miniterm - help
+---
+--- {exit:8} Exit program
+--- {menu:8} Menu escape key, followed by:
+--- Menu keys:
+---    {menu:7} Send the menu character itself to remote
+---    {exit:7} Send the exit character itself to remote
+---    {info:7} Show info
+---    {upload:7} Upload file (prompt will be shown)
+---    {repr:7} encoding
+---    {filter:7} edit filters
+--- Toggles:
+---    {rts:7} RTS   {dtr:7} DTR   {brk:7} BREAK
+---    {echo:7} echo  {eol:7} EOL
+---
+--- Port settings ({menu} followed by the following):
+---    p          change port
+---    7 8        set data bits
+---    N E O S M  change parity (None, Even, Odd, Space, Mark)
+---    1 2 3      set stop bits (1, 2, 1.5)
+---    b          change baud rate
+---    x X        disable/enable software flow control
+---    r R        disable/enable hardware flow control
+""".format(version=getattr(serial, 'VERSION', 'unknown version'),
+           exit=key_description(self.exit_character),
+           menu=key_description(self.menu_character),
+           rts=key_description('\x12'),
+           dtr=key_description('\x04'),
+           brk=key_description('\x02'),
+           echo=key_description('\x05'),
+           info=key_description('\x09'),
+           upload=key_description('\x15'),
+           repr=key_description('\x01'),
+           filter=key_description('\x06'),
+           eol=key_description('\x0c'))
+
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# default args can be used to override when calling main() from an other script
+# e.g to create a miniterm-my-device.py
+def main(default_port=None, default_baudrate=9600, default_rts=None, default_dtr=None):
+    """Command line tool, entry point"""
+
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        description="Miniterm - A simple terminal program for the serial port.")
+
+    parser.add_argument(
+        "port",
+        nargs='?',
+        help="serial port name ('-' to show port list)",
+        default=default_port)
+
+    parser.add_argument(
+        "baudrate",
+        nargs='?',
+        type=int,
+        help="set baud rate, default: %(default)s",
+        default=default_baudrate)
+
+    group = parser.add_argument_group("port settings")
+
+    group.add_argument(
+        "--parity",
+        choices=['N', 'E', 'O', 'S', 'M'],
+        type=lambda c: c.upper(),
+        help="set parity, one of {N E O S M}, default: N",
+        default='N')
+
+    group.add_argument(
+        "--rtscts",
+        action="store_true",
+        help="enable RTS/CTS flow control (default off)",
+        default=False)
+
+    group.add_argument(
+        "--xonxoff",
+        action="store_true",
+        help="enable software flow control (default off)",
+        default=False)
+
+    group.add_argument(
+        "--rts",
+        type=int,
+        help="set initial RTS line state (possible values: 0, 1)",
+        default=default_rts)
+
+    group.add_argument(
+        "--dtr",
+        type=int,
+        help="set initial DTR line state (possible values: 0, 1)",
+        default=default_dtr)
+
+    group.add_argument(
+        "--ask",
+        action="store_true",
+        help="ask again for port when open fails",
+        default=False)
+
+    group = parser.add_argument_group("data handling")
+
+    group.add_argument(
+        "-e", "--echo",
+        action="store_true",
+        help="enable local echo (default off)",
+        default=False)
+
+    group.add_argument(
+        "--encoding",
+        dest="serial_port_encoding",
+        metavar="CODEC",
+        help="set the encoding for the serial port (e.g. hexlify, Latin1, UTF-8), default: %(default)s",
+        default='UTF-8')
+
+    group.add_argument(
+        "-f", "--filter",
+        action="append",
+        metavar="NAME",
+        help="add text transformation",
+        default=[])
+
+    group.add_argument(
+        "--eol",
+        choices=['CR', 'LF', 'CRLF'],
+        type=lambda c: c.upper(),
+        help="end of line mode",
+        default='CRLF')
+
+    group.add_argument(
+        "--raw",
+        action="store_true",
+        help="Do no apply any encodings/transformations",
+        default=False)
+
+    group = parser.add_argument_group("hotkeys")
+
+    group.add_argument(
+        "--exit-char",
+        type=int,
+        metavar='NUM',
+        help="Unicode of special character that is used to exit the application, default: %(default)s",
+        default=0x1d)  # GS/CTRL+]
+
+    group.add_argument(
+        "--menu-char",
+        type=int,
+        metavar='NUM',
+        help="Unicode code of special character that is used to control miniterm (menu), default: %(default)s",
+        default=0x14)  # Menu: CTRL+T
+
+    group = parser.add_argument_group("diagnostics")
+
+    group.add_argument(
+        "-q", "--quiet",
+        action="store_true",
+        help="suppress non-error messages",
+        default=False)
+
+    group.add_argument(
+        "--develop",
+        action="store_true",
+        help="show Python traceback on error",
+        default=False)
+
+    args = parser.parse_args()
+
+    if args.menu_char == args.exit_char:
+        parser.error('--exit-char can not be the same as --menu-char')
+
+    if args.filter:
+        if 'help' in args.filter:
+            sys.stderr.write('Available filters:\n')
+            sys.stderr.write('\n'.join(
+                '{:<10} = {.__doc__}'.format(k, v)
+                for k, v in sorted(TRANSFORMATIONS.items())))
+            sys.stderr.write('\n')
+            sys.exit(1)
+        filters = args.filter
+    else:
+        filters = ['default']
+
+    while True:
+        # no port given on command line -> ask user now
+        if args.port is None or args.port == '-':
+            try:
+                args.port = ask_for_port()
+            except KeyboardInterrupt:
+                sys.stderr.write('\n')
+                parser.error('user aborted and port is not given')
+            else:
+                if not args.port:
+                    parser.error('port is not given')
+        try:
+            serial_instance = serial.serial_for_url(
+                args.port,
+                args.baudrate,
+                parity=args.parity,
+                rtscts=args.rtscts,
+                xonxoff=args.xonxoff,
+                do_not_open=True)
+
+            if not hasattr(serial_instance, 'cancel_read'):
+                # enable timeout for alive flag polling if cancel_read is not available
+                serial_instance.timeout = 1
+
+            if args.dtr is not None:
+                if not args.quiet:
+                    sys.stderr.write('--- forcing DTR {}\n'.format('active' if args.dtr else 'inactive'))
+                serial_instance.dtr = args.dtr
+            if args.rts is not None:
+                if not args.quiet:
+                    sys.stderr.write('--- forcing RTS {}\n'.format('active' if args.rts else 'inactive'))
+                serial_instance.rts = args.rts
+
+            serial_instance.open()
+        except serial.SerialException as e:
+            sys.stderr.write('could not open port {}: {}\n'.format(repr(args.port), e))
+            if args.develop:
+                raise
+            if not args.ask:
+                sys.exit(1)
+            else:
+                args.port = '-'
+        else:
+            break
+
+    miniterm = Miniterm(
+        serial_instance,
+        echo=args.echo,
+        eol=args.eol.lower(),
+        filters=filters)
+    miniterm.exit_character = unichr(args.exit_char)
+    miniterm.menu_character = unichr(args.menu_char)
+    miniterm.raw = args.raw
+    miniterm.set_rx_encoding(args.serial_port_encoding)
+    miniterm.set_tx_encoding(args.serial_port_encoding)
+
+    if not args.quiet:
+        sys.stderr.write('--- Miniterm on {p.name}  {p.baudrate},{p.bytesize},{p.parity},{p.stopbits} ---\n'.format(
+            p=miniterm.serial))
+        sys.stderr.write('--- Quit: {} | Menu: {} | Help: {} followed by {} ---\n'.format(
+            key_description(miniterm.exit_character),
+            key_description(miniterm.menu_character),
+            key_description(miniterm.menu_character),
+            key_description('\x08')))
+
+    miniterm.start()
+    try:
+        miniterm.join(True)
+    except KeyboardInterrupt:
+        pass
+    if not args.quiet:
+        sys.stderr.write("\n--- exit ---\n")
+    miniterm.join()
+    miniterm.close()
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+if __name__ == '__main__':
+    main()

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_alt.py

@@ -0,0 +1,55 @@
+#! python
+#
+# This module implements a special URL handler that allows selecting an
+# alternate implementation provided by some backends.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# URL format:    alt://port[?option[=value][&option[=value]]]
+# options:
+# - class=X used class named X instead of Serial
+#
+# example:
+#   use poll based implementation on Posix (Linux):
+#   python -m serial.tools.miniterm alt:///dev/ttyUSB0?class=PosixPollSerial
+
+try:
+    import urlparse
+except ImportError:
+    import urllib.parse as urlparse
+
+import serial
+
+
+def serial_class_for_url(url):
+    """extract host and port from an URL string"""
+    parts = urlparse.urlsplit(url)
+    if parts.scheme != 'alt':
+        raise serial.SerialException(
+            'expected a string in the form "alt://port[?option[=value][&option[=value]]]": '
+            'not starting with alt:// ({!r})'.format(parts.scheme))
+    class_name = 'Serial'
+    try:
+        for option, values in urlparse.parse_qs(parts.query, True).items():
+            if option == 'class':
+                class_name = values[0]
+            else:
+                raise ValueError('unknown option: {!r}'.format(option))
+    except ValueError as e:
+        raise serial.SerialException(
+            'expected a string in the form '
+            '"alt://port[?option[=value][&option[=value]]]": {!r}'.format(e))
+    if not hasattr(serial, class_name):
+        raise ValueError('unknown class: {!r}'.format(class_name))
+    cls = getattr(serial, class_name)
+    if not issubclass(cls, serial.Serial):
+        raise ValueError('class {!r} is not an instance of Serial'.format(class_name))
+    return (''.join([parts.netloc, parts.path]), cls)
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+if __name__ == '__main__':
+    s = serial.serial_for_url('alt:///dev/ttyS0?class=PosixPollSerial')
+    print(s)

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_hwgrep.py

@@ -0,0 +1,89 @@
+#! python
+#
+# This module implements a special URL handler that uses the port listing to
+# find ports by searching the string descriptions.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2011-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# URL format:    hwgrep://<regexp>&<option>
+#
+# where <regexp> is a Python regexp according to the re module
+#
+# violating the normal definition for URLs, the charachter `&` is used to
+# separate parameters from the arguments (instead of `?`, but the question mark
+# is heavily used in regexp'es)
+#
+# options:
+# n=<N>     pick the N'th entry instead of the first one (numbering starts at 1)
+# skip_busy tries to open port to check if it is busy, fails on posix as ports are not locked!
+
+import serial
+import serial.tools.list_ports
+
+try:
+    basestring
+except NameError:
+    basestring = str    # python 3  pylint: disable=redefined-builtin
+
+
+class Serial(serial.Serial):
+    """Just inherit the native Serial port implementation and patch the port property."""
+    # pylint: disable=no-member
+
+    @serial.Serial.port.setter
+    def port(self, value):
+        """translate port name before storing it"""
+        if isinstance(value, basestring) and value.startswith('hwgrep://'):
+            serial.Serial.port.__set__(self, self.from_url(value))
+        else:
+            serial.Serial.port.__set__(self, value)
+
+    def from_url(self, url):
+        """extract host and port from an URL string"""
+        if url.lower().startswith("hwgrep://"):
+            url = url[9:]
+        n = 0
+        test_open = False
+        args = url.split('&')
+        regexp = args.pop(0)
+        for arg in args:
+            if '=' in arg:
+                option, value = arg.split('=', 1)
+            else:
+                option = arg
+                value = None
+            if option == 'n':
+                # pick n'th element
+                n = int(value) - 1
+                if n < 1:
+                    raise ValueError('option "n" expects a positive integer larger than 1: {!r}'.format(value))
+            elif option == 'skip_busy':
+                # open to test if port is available. not the nicest way..
+                test_open = True
+            else:
+                raise ValueError('unknown option: {!r}'.format(option))
+        # use a for loop to get the 1st element from the generator
+        for port, desc, hwid in sorted(serial.tools.list_ports.grep(regexp)):
+            if test_open:
+                try:
+                    s = serial.Serial(port)
+                except serial.SerialException:
+                    # it has some error, skip this one
+                    continue
+                else:
+                    s.close()
+            if n:
+                n -= 1
+                continue
+            return port
+        else:
+            raise serial.SerialException('no ports found matching regexp {!r}'.format(url))
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+if __name__ == '__main__':
+    s = Serial(None)
+    s.port = 'hwgrep://ttyS0'
+    print(s)

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_loop.py

@@ -0,0 +1,295 @@
+#! python
+#
+# This module implements a loop back connection receiving itself what it sent.
+#
+# The purpose of this module is.. well... You can run the unit tests with it.
+# and it was so easy to implement ;-)
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# URL format:    loop://[option[/option...]]
+# options:
+# - "debug" print diagnostic messages
+import logging
+import numbers
+import time
+try:
+    import urlparse
+except ImportError:
+    import urllib.parse as urlparse
+try:
+    import queue
+except ImportError:
+    import Queue as queue
+
+from serial.serialutil import SerialBase, SerialException, to_bytes, iterbytes, writeTimeoutError, portNotOpenError
+
+# map log level names to constants. used in from_url()
+LOGGER_LEVELS = {
+    'debug': logging.DEBUG,
+    'info': logging.INFO,
+    'warning': logging.WARNING,
+    'error': logging.ERROR,
+}
+
+
+class Serial(SerialBase):
+    """Serial port implementation that simulates a loop back connection in plain software."""
+
+    BAUDRATES = (50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
+                 9600, 19200, 38400, 57600, 115200)
+
+    def __init__(self, *args, **kwargs):
+        self.buffer_size = 4096
+        self.queue = None
+        self.logger = None
+        self._cancel_write = False
+        super(Serial, self).__init__(*args, **kwargs)
+
+    def open(self):
+        """\
+        Open port with current settings. This may throw a SerialException
+        if the port cannot be opened.
+        """
+        if self.is_open:
+            raise SerialException("Port is already open.")
+        self.logger = None
+        self.queue = queue.Queue(self.buffer_size)
+
+        if self._port is None:
+            raise SerialException("Port must be configured before it can be used.")
+        # not that there is anything to open, but the function applies the
+        # options found in the URL
+        self.from_url(self.port)
+
+        # not that there anything to configure...
+        self._reconfigure_port()
+        # all things set up get, now a clean start
+        self.is_open = True
+        if not self._dsrdtr:
+            self._update_dtr_state()
+        if not self._rtscts:
+            self._update_rts_state()
+        self.reset_input_buffer()
+        self.reset_output_buffer()
+
+    def close(self):
+        if self.is_open:
+            self.is_open = False
+            try:
+                self.queue.put_nowait(None)
+            except queue.Full:
+                pass
+        super(Serial, self).close()
+
+    def _reconfigure_port(self):
+        """\
+        Set communication parameters on opened port. For the loop://
+        protocol all settings are ignored!
+        """
+        # not that's it of any real use, but it helps in the unit tests
+        if not isinstance(self._baudrate, numbers.Integral) or not 0 < self._baudrate < 2 ** 32:
+            raise ValueError("invalid baudrate: {!r}".format(self._baudrate))
+        if self.logger:
+            self.logger.info('_reconfigure_port()')
+
+    def from_url(self, url):
+        """extract host and port from an URL string"""
+        parts = urlparse.urlsplit(url)
+        if parts.scheme != "loop":
+            raise SerialException(
+                'expected a string in the form '
+                '"loop://[?logging={debug|info|warning|error}]": not starting '
+                'with loop:// ({!r})'.format(parts.scheme))
+        try:
+            # process options now, directly altering self
+            for option, values in urlparse.parse_qs(parts.query, True).items():
+                if option == 'logging':
+                    logging.basicConfig()   # XXX is that good to call it here?
+                    self.logger = logging.getLogger('pySerial.loop')
+                    self.logger.setLevel(LOGGER_LEVELS[values[0]])
+                    self.logger.debug('enabled logging')
+                else:
+                    raise ValueError('unknown option: {!r}'.format(option))
+        except ValueError as e:
+            raise SerialException(
+                'expected a string in the form '
+                '"loop://[?logging={debug|info|warning|error}]": {}'.format(e))
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def in_waiting(self):
+        """Return the number of bytes currently in the input buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            # attention the logged value can differ from return value in
+            # threaded environments...
+            self.logger.debug('in_waiting -> {:d}'.format(self.queue.qsize()))
+        return self.queue.qsize()
+
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if self._timeout is not None and self._timeout != 0:
+            timeout = time.time() + self._timeout
+        else:
+            timeout = None
+        data = bytearray()
+        while size > 0 and self.is_open:
+            try:
+                b = self.queue.get(timeout=self._timeout)  # XXX inter char timeout
+            except queue.Empty:
+                if self._timeout == 0:
+                    break
+            else:
+                if b is not None:
+                    data += b
+                    size -= 1
+                else:
+                    break
+            # check for timeout now, after data has been read.
+            # useful for timeout = 0 (non blocking) read
+            if timeout and time.time() > timeout:
+                if self.logger:
+                    self.logger.info('read timeout')
+                break
+        return bytes(data)
+
+    def cancel_read(self):
+        self.queue.put_nowait(None)
+
+    def cancel_write(self):
+        self._cancel_write = True
+
+    def write(self, data):
+        """\
+        Output the given byte string over the serial port. Can block if the
+        connection is blocked. May raise SerialException if the connection is
+        closed.
+        """
+        self._cancel_write = False
+        if not self.is_open:
+            raise portNotOpenError
+        data = to_bytes(data)
+        # calculate aprox time that would be used to send the data
+        time_used_to_send = 10.0 * len(data) / self._baudrate
+        # when a write timeout is configured check if we would be successful
+        # (not sending anything, not even the part that would have time)
+        if self._write_timeout is not None and time_used_to_send > self._write_timeout:
+            # must wait so that unit test succeeds
+            time_left = self._write_timeout
+            while time_left > 0 and not self._cancel_write:
+                time.sleep(min(time_left, 0.5))
+                time_left -= 0.5
+            if self._cancel_write:
+                return 0  # XXX
+            raise writeTimeoutError
+        for byte in iterbytes(data):
+            self.queue.put(byte, timeout=self._write_timeout)
+        return len(data)
+
+    def reset_input_buffer(self):
+        """Clear input buffer, discarding all that is in the buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('reset_input_buffer()')
+        try:
+            while self.queue.qsize():
+                self.queue.get_nowait()
+        except queue.Empty:
+            pass
+
+    def reset_output_buffer(self):
+        """\
+        Clear output buffer, aborting the current output and
+        discarding all that is in the buffer.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('reset_output_buffer()')
+        try:
+            while self.queue.qsize():
+                self.queue.get_nowait()
+        except queue.Empty:
+            pass
+
+    def _update_break_state(self):
+        """\
+        Set break: Controls TXD. When active, to transmitting is
+        possible.
+        """
+        if self.logger:
+            self.logger.info('_update_break_state({!r})'.format(self._break_state))
+
+    def _update_rts_state(self):
+        """Set terminal status line: Request To Send"""
+        if self.logger:
+            self.logger.info('_update_rts_state({!r}) -> state of CTS'.format(self._rts_state))
+
+    def _update_dtr_state(self):
+        """Set terminal status line: Data Terminal Ready"""
+        if self.logger:
+            self.logger.info('_update_dtr_state({!r}) -> state of DSR'.format(self._dtr_state))
+
+    @property
+    def cts(self):
+        """Read terminal status line: Clear To Send"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('CTS -> state of RTS ({!r})'.format(self._rts_state))
+        return self._rts_state
+
+    @property
+    def dsr(self):
+        """Read terminal status line: Data Set Ready"""
+        if self.logger:
+            self.logger.info('DSR -> state of DTR ({!r})'.format(self._dtr_state))
+        return self._dtr_state
+
+    @property
+    def ri(self):
+        """Read terminal status line: Ring Indicator"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('returning dummy for RI')
+        return False
+
+    @property
+    def cd(self):
+        """Read terminal status line: Carrier Detect"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('returning dummy for CD')
+        return True
+
+    # - - - platform specific - - -
+    # None so far
+
+
+# simple client test
+if __name__ == '__main__':
+    import sys
+    s = Serial('loop://')
+    sys.stdout.write('{}\n'.format(s))
+
+    sys.stdout.write("write...\n")
+    s.write("hello\n")
+    s.flush()
+    sys.stdout.write("read: {!r}\n".format(s.read(5)))
+
+    s.close()

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_rfc2217.py

@@ -0,0 +1,10 @@
+#! python
+#
+# This is a thin wrapper to load the rfc2271 implementation.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2011 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+from serial.rfc2217 import Serial  # noqa

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_serve-rfc2217.py

@@ -0,0 +1,10 @@
+#! python
+#
+# This is a thin wrapper to load the rfc2271 implementation.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2011 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+from serial.rfc2217 import Serial  # noqa

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_socket.py

@@ -0,0 +1,356 @@
+#! python
+#
+# This module implements a simple socket based client.
+# It does not support changing any port parameters and will silently ignore any
+# requests to do so.
+#
+# The purpose of this module is that applications using pySerial can connect to
+# TCP/IP to serial port converters that do not support RFC 2217.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# URL format:    socket://<host>:<port>[/option[/option...]]
+# options:
+# - "debug" print diagnostic messages
+
+import errno
+import logging
+import select
+import socket
+import time
+try:
+    import urlparse
+except ImportError:
+    import urllib.parse as urlparse
+
+from serial.serialutil import SerialBase, SerialException, to_bytes, \
+    portNotOpenError, writeTimeoutError, Timeout
+
+# map log level names to constants. used in from_url()
+LOGGER_LEVELS = {
+    'debug': logging.DEBUG,
+    'info': logging.INFO,
+    'warning': logging.WARNING,
+    'error': logging.ERROR,
+}
+
+POLL_TIMEOUT = 5
+
+
+class Serial(SerialBase):
+    """Serial port implementation for plain sockets."""
+
+    BAUDRATES = (50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
+                 9600, 19200, 38400, 57600, 115200)
+
+    def open(self):
+        """\
+        Open port with current settings. This may throw a SerialException
+        if the port cannot be opened.
+        """
+        self.logger = None
+        if self._port is None:
+            raise SerialException("Port must be configured before it can be used.")
+        if self.is_open:
+            raise SerialException("Port is already open.")
+        try:
+            # timeout is used for write timeout support :/ and to get an initial connection timeout
+            self._socket = socket.create_connection(self.from_url(self.portstr), timeout=POLL_TIMEOUT)
+        except Exception as msg:
+            self._socket = None
+            raise SerialException("Could not open port {}: {}".format(self.portstr, msg))
+        # after connecting, switch to non-blocking, we're using select
+        self._socket.setblocking(False)
+
+        # not that there is anything to configure...
+        self._reconfigure_port()
+        # all things set up get, now a clean start
+        self.is_open = True
+        if not self._dsrdtr:
+            self._update_dtr_state()
+        if not self._rtscts:
+            self._update_rts_state()
+        self.reset_input_buffer()
+        self.reset_output_buffer()
+
+    def _reconfigure_port(self):
+        """\
+        Set communication parameters on opened port. For the socket://
+        protocol all settings are ignored!
+        """
+        if self._socket is None:
+            raise SerialException("Can only operate on open ports")
+        if self.logger:
+            self.logger.info('ignored port configuration change')
+
+    def close(self):
+        """Close port"""
+        if self.is_open:
+            if self._socket:
+                try:
+                    self._socket.shutdown(socket.SHUT_RDWR)
+                    self._socket.close()
+                except:
+                    # ignore errors.
+                    pass
+                self._socket = None
+            self.is_open = False
+            # in case of quick reconnects, give the server some time
+            time.sleep(0.3)
+
+    def from_url(self, url):
+        """extract host and port from an URL string"""
+        parts = urlparse.urlsplit(url)
+        if parts.scheme != "socket":
+            raise SerialException(
+                'expected a string in the form '
+                '"socket://<host>:<port>[?logging={debug|info|warning|error}]": '
+                'not starting with socket:// ({!r})'.format(parts.scheme))
+        try:
+            # process options now, directly altering self
+            for option, values in urlparse.parse_qs(parts.query, True).items():
+                if option == 'logging':
+                    logging.basicConfig()   # XXX is that good to call it here?
+                    self.logger = logging.getLogger('pySerial.socket')
+                    self.logger.setLevel(LOGGER_LEVELS[values[0]])
+                    self.logger.debug('enabled logging')
+                else:
+                    raise ValueError('unknown option: {!r}'.format(option))
+            if not 0 <= parts.port < 65536:
+                raise ValueError("port not in range 0...65535")
+        except ValueError as e:
+            raise SerialException(
+                'expected a string in the form '
+                '"socket://<host>:<port>[?logging={debug|info|warning|error}]": {}'.format(e))
+
+        return (parts.hostname, parts.port)
+
+    #  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
+
+    @property
+    def in_waiting(self):
+        """Return the number of bytes currently in the input buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+        # Poll the socket to see if it is ready for reading.
+        # If ready, at least one byte will be to read.
+        lr, lw, lx = select.select([self._socket], [], [], 0)
+        return len(lr)
+
+    # select based implementation, similar to posix, but only using socket API
+    # to be portable, additionally handle socket timeout which is used to
+    # emulate write timeouts
+    def read(self, size=1):
+        """\
+        Read size bytes from the serial port. If a timeout is set it may
+        return less characters as requested. With no timeout it will block
+        until the requested number of bytes is read.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        read = bytearray()
+        timeout = Timeout(self._timeout)
+        while len(read) < size:
+            try:
+                ready, _, _ = select.select([self._socket], [], [], timeout.time_left())
+                # If select was used with a timeout, and the timeout occurs, it
+                # returns with empty lists -> thus abort read operation.
+                # For timeout == 0 (non-blocking operation) also abort when
+                # there is nothing to read.
+                if not ready:
+                    break   # timeout
+                buf = self._socket.recv(size - len(read))
+                # read should always return some data as select reported it was
+                # ready to read when we get to this point, unless it is EOF
+                if not buf:
+                    raise SerialException('socket disconnected')
+                read.extend(buf)
+            except OSError as e:
+                # this is for Python 3.x where select.error is a subclass of
+                # OSError ignore BlockingIOErrors and EINTR. other errors are shown
+                # https://www.python.org/dev/peps/pep-0475.
+                if e.errno not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('read failed: {}'.format(e))
+            except (select.error, socket.error) as e:
+                # this is for Python 2.x
+                # ignore BlockingIOErrors and EINTR. all errors are shown
+                # see also http://www.python.org/dev/peps/pep-3151/#select
+                if e[0] not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('read failed: {}'.format(e))
+            if timeout.expired():
+                break
+        return bytes(read)
+
+    def write(self, data):
+        """\
+        Output the given byte string over the serial port. Can block if the
+        connection is blocked. May raise SerialException if the connection is
+        closed.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+
+        d = to_bytes(data)
+        tx_len = length = len(d)
+        timeout = Timeout(self._write_timeout)
+        while tx_len > 0:
+            try:
+                n = self._socket.send(d)
+                if timeout.is_non_blocking:
+                    # Zero timeout indicates non-blocking - simply return the
+                    # number of bytes of data actually written
+                    return n
+                elif not timeout.is_infinite:
+                    # when timeout is set, use select to wait for being ready
+                    # with the time left as timeout
+                    if timeout.expired():
+                        raise writeTimeoutError
+                    _, ready, _ = select.select([], [self._socket], [], timeout.time_left())
+                    if not ready:
+                        raise writeTimeoutError
+                else:
+                    assert timeout.time_left() is None
+                    # wait for write operation
+                    _, ready, _ = select.select([], [self._socket], [], None)
+                    if not ready:
+                        raise SerialException('write failed (select)')
+                d = d[n:]
+                tx_len -= n
+            except SerialException:
+                raise
+            except OSError as e:
+                # this is for Python 3.x where select.error is a subclass of
+                # OSError ignore BlockingIOErrors and EINTR. other errors are shown
+                # https://www.python.org/dev/peps/pep-0475.
+                if e.errno not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('write failed: {}'.format(e))
+            except select.error as e:
+                # this is for Python 2.x
+                # ignore BlockingIOErrors and EINTR. all errors are shown
+                # see also http://www.python.org/dev/peps/pep-3151/#select
+                if e[0] not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('write failed: {}'.format(e))
+            if not timeout.is_non_blocking and timeout.expired():
+                raise writeTimeoutError
+        return length - len(d)
+
+    def reset_input_buffer(self):
+        """Clear input buffer, discarding all that is in the buffer."""
+        if not self.is_open:
+            raise portNotOpenError
+
+        # just use recv to remove input, while there is some
+        ready = True
+        while ready:
+            ready, _, _ = select.select([self._socket], [], [], 0)
+            try:
+                self._socket.recv(4096)
+            except OSError as e:
+                # this is for Python 3.x where select.error is a subclass of
+                # OSError ignore BlockingIOErrors and EINTR. other errors are shown
+                # https://www.python.org/dev/peps/pep-0475.
+                if e.errno not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('read failed: {}'.format(e))
+            except (select.error, socket.error) as e:
+                # this is for Python 2.x
+                # ignore BlockingIOErrors and EINTR. all errors are shown
+                # see also http://www.python.org/dev/peps/pep-3151/#select
+                if e[0] not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+                    raise SerialException('read failed: {}'.format(e))
+
+    def reset_output_buffer(self):
+        """\
+        Clear output buffer, aborting the current output and
+        discarding all that is in the buffer.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('ignored reset_output_buffer')
+
+    def send_break(self, duration=0.25):
+        """\
+        Send break condition. Timed, returns to idle state after given
+        duration.
+        """
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('ignored send_break({!r})'.format(duration))
+
+    def _update_break_state(self):
+        """Set break: Controls TXD. When active, to transmitting is
+        possible."""
+        if self.logger:
+            self.logger.info('ignored _update_break_state({!r})'.format(self._break_state))
+
+    def _update_rts_state(self):
+        """Set terminal status line: Request To Send"""
+        if self.logger:
+            self.logger.info('ignored _update_rts_state({!r})'.format(self._rts_state))
+
+    def _update_dtr_state(self):
+        """Set terminal status line: Data Terminal Ready"""
+        if self.logger:
+            self.logger.info('ignored _update_dtr_state({!r})'.format(self._dtr_state))
+
+    @property
+    def cts(self):
+        """Read terminal status line: Clear To Send"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('returning dummy for cts')
+        return True
+
+    @property
+    def dsr(self):
+        """Read terminal status line: Data Set Ready"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('returning dummy for dsr')
+        return True
+
+    @property
+    def ri(self):
+        """Read terminal status line: Ring Indicator"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('returning dummy for ri')
+        return False
+
+    @property
+    def cd(self):
+        """Read terminal status line: Carrier Detect"""
+        if not self.is_open:
+            raise portNotOpenError
+        if self.logger:
+            self.logger.info('returning dummy for cd)')
+        return True
+
+    # - - - platform specific - - -
+
+    # works on Linux and probably all the other POSIX systems
+    def fileno(self):
+        """Get the file handle of the underlying socket for use with select"""
+        return self._socket.fileno()
+
+
+#
+# simple client test
+if __name__ == '__main__':
+    import sys
+    s = Serial('socket://localhost:7000')
+    sys.stdout.write('{}\n'.format(s))
+
+    sys.stdout.write("write...\n")
+    s.write(b"hello\n")
+    s.flush()
+    sys.stdout.write("read: {}\n".format(s.read(5)))
+
+    s.close()

venv/lib/python3.11/site-packages/serial/urlhandler/protocol_spy.py

@@ -0,0 +1,286 @@
+#! python
+#
+# This module implements a special URL handler that wraps an other port,
+# print the traffic for debugging purposes. With this, it is possible
+# to debug the serial port traffic on every application that uses
+# serial_for_url.
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+#
+# URL format:    spy://port[?option[=value][&option[=value]]]
+# options:
+# - dev=X   a file or device to write to
+# - color   use escape code to colorize output
+# - raw     forward raw bytes instead of hexdump
+#
+# example:
+#   redirect output to an other terminal window on Posix (Linux):
+#   python -m serial.tools.miniterm spy:///dev/ttyUSB0?dev=/dev/pts/14\&color
+
+import sys
+import time
+
+import serial
+
+try:
+    import urlparse
+except ImportError:
+    import urllib.parse as urlparse
+
+
+def sixteen(data):
+    """\
+    yield tuples of hex and ASCII display in multiples of 16. Includes a
+    space after 8 bytes and (None, None) after 16 bytes and at the end.
+    """
+    n = 0
+    for b in serial.iterbytes(data):
+        yield ('{:02X} '.format(ord(b)), b.decode('ascii') if b' ' <= b < b'\x7f' else '.')
+        n += 1
+        if n == 8:
+            yield (' ', '')
+        elif n >= 16:
+            yield (None, None)
+            n = 0
+    if n > 0:
+        while n < 16:
+            n += 1
+            if n == 8:
+                yield (' ', '')
+            yield ('   ', ' ')
+        yield (None, None)
+
+
+def hexdump(data):
+    """yield lines with hexdump of data"""
+    values = []
+    ascii = []
+    offset = 0
+    for h, a in sixteen(data):
+        if h is None:
+            yield (offset, ' '.join([''.join(values), ''.join(ascii)]))
+            del values[:]
+            del ascii[:]
+            offset += 0x10
+        else:
+            values.append(h)
+            ascii.append(a)
+
+
+class FormatRaw(object):
+    """Forward only RX and TX data to output."""
+
+    def __init__(self, output, color):
+        self.output = output
+        self.color = color
+        self.rx_color = '\x1b[32m'
+        self.tx_color = '\x1b[31m'
+
+    def rx(self, data):
+        """show received data"""
+        if self.color:
+            self.output.write(self.rx_color)
+        self.output.write(data)
+        self.output.flush()
+
+    def tx(self, data):
+        """show transmitted data"""
+        if self.color:
+            self.output.write(self.tx_color)
+        self.output.write(data)
+        self.output.flush()
+
+    def control(self, name, value):
+        """(do not) show control calls"""
+        pass
+
+
+class FormatHexdump(object):
+    """\
+    Create a hex dump of RX ad TX data, show when control lines are read or
+    written.
+
+    output example::
+
+        000000.000 Q-RX flushInput
+        000002.469 RTS  inactive
+        000002.773 RTS  active
+        000003.001 TX   48 45 4C 4C 4F                                    HELLO
+        000003.102 RX   48 45 4C 4C 4F                                    HELLO
+
+    """
+
+    def __init__(self, output, color):
+        self.start_time = time.time()
+        self.output = output
+        self.color = color
+        self.rx_color = '\x1b[32m'
+        self.tx_color = '\x1b[31m'
+        self.control_color = '\x1b[37m'
+
+    def write_line(self, timestamp, label, value, value2=''):
+        self.output.write('{:010.3f} {:4} {}{}\n'.format(timestamp, label, value, value2))
+        self.output.flush()
+
+    def rx(self, data):
+        """show received data as hex dump"""
+        if self.color:
+            self.output.write(self.rx_color)
+        if data:
+            for offset, row in hexdump(data):
+                self.write_line(time.time() - self.start_time, 'RX', '{:04X}  '.format(offset), row)
+        else:
+            self.write_line(time.time() - self.start_time, 'RX', '<empty>')
+
+    def tx(self, data):
+        """show transmitted data as hex dump"""
+        if self.color:
+            self.output.write(self.tx_color)
+        for offset, row in hexdump(data):
+            self.write_line(time.time() - self.start_time, 'TX', '{:04X}  '.format(offset), row)
+
+    def control(self, name, value):
+        """show control calls"""
+        if self.color:
+            self.output.write(self.control_color)
+        self.write_line(time.time() - self.start_time, name, value)
+
+
+class Serial(serial.Serial):
+    """\
+    Inherit the native Serial port implementation and wrap all the methods and
+    attributes.
+    """
+    # pylint: disable=no-member
+
+    def __init__(self, *args, **kwargs):
+        super(Serial, self).__init__(*args, **kwargs)
+        self.formatter = None
+        self.show_all = False
+
+    @serial.Serial.port.setter
+    def port(self, value):
+        if value is not None:
+            serial.Serial.port.__set__(self, self.from_url(value))
+
+    def from_url(self, url):
+        """extract host and port from an URL string"""
+        parts = urlparse.urlsplit(url)
+        if parts.scheme != 'spy':
+            raise serial.SerialException(
+                'expected a string in the form '
+                '"spy://port[?option[=value][&option[=value]]]": '
+                'not starting with spy:// ({!r})'.format(parts.scheme))
+        # process options now, directly altering self
+        formatter = FormatHexdump
+        color = False
+        output = sys.stderr
+        try:
+            for option, values in urlparse.parse_qs(parts.query, True).items():
+                if option == 'file':
+                    output = open(values[0], 'w')
+                elif option == 'color':
+                    color = True
+                elif option == 'raw':
+                    formatter = FormatRaw
+                elif option == 'all':
+                    self.show_all = True
+                else:
+                    raise ValueError('unknown option: {!r}'.format(option))
+        except ValueError as e:
+            raise serial.SerialException(
+                'expected a string in the form '
+                '"spy://port[?option[=value][&option[=value]]]": {}'.format(e))
+        self.formatter = formatter(output, color)
+        return ''.join([parts.netloc, parts.path])
+
+    def write(self, tx):
+        self.formatter.tx(tx)
+        return super(Serial, self).write(tx)
+
+    def read(self, size=1):
+        rx = super(Serial, self).read(size)
+        if rx or self.show_all:
+            self.formatter.rx(rx)
+        return rx
+
+    if hasattr(serial.Serial, 'cancel_read'):
+        def cancel_read(self):
+            self.formatter.control('Q-RX', 'cancel_read')
+            super(Serial, self).cancel_read()
+
+    if hasattr(serial.Serial, 'cancel_write'):
+        def cancel_write(self):
+            self.formatter.control('Q-TX', 'cancel_write')
+            super(Serial, self).cancel_write()
+
+    @property
+    def in_waiting(self):
+        n = super(Serial, self).in_waiting
+        if self.show_all:
+            self.formatter.control('Q-RX', 'in_waiting -> {}'.format(n))
+        return n
+
+    def flush(self):
+        self.formatter.control('Q-TX', 'flush')
+        super(Serial, self).flush()
+
+    def reset_input_buffer(self):
+        self.formatter.control('Q-RX', 'reset_input_buffer')
+        super(Serial, self).reset_input_buffer()
+
+    def reset_output_buffer(self):
+        self.formatter.control('Q-TX', 'reset_output_buffer')
+        super(Serial, self).reset_output_buffer()
+
+    def send_break(self, duration=0.25):
+        self.formatter.control('BRK', 'send_break {}s'.format(duration))
+        super(Serial, self).send_break(duration)
+
+    @serial.Serial.break_condition.setter
+    def break_condition(self, level):
+        self.formatter.control('BRK', 'active' if level else 'inactive')
+        serial.Serial.break_condition.__set__(self, level)
+
+    @serial.Serial.rts.setter
+    def rts(self, level):
+        self.formatter.control('RTS', 'active' if level else 'inactive')
+        serial.Serial.rts.__set__(self, level)
+
+    @serial.Serial.dtr.setter
+    def dtr(self, level):
+        self.formatter.control('DTR', 'active' if level else 'inactive')
+        serial.Serial.dtr.__set__(self, level)
+
+    @serial.Serial.cts.getter
+    def cts(self):
+        level = super(Serial, self).cts
+        self.formatter.control('CTS', 'active' if level else 'inactive')
+        return level
+
+    @serial.Serial.dsr.getter
+    def dsr(self):
+        level = super(Serial, self).dsr
+        self.formatter.control('DSR', 'active' if level else 'inactive')
+        return level
+
+    @serial.Serial.ri.getter
+    def ri(self):
+        level = super(Serial, self).ri
+        self.formatter.control('RI', 'active' if level else 'inactive')
+        return level
+
+    @serial.Serial.cd.getter
+    def cd(self):
+        level = super(Serial, self).cd
+        self.formatter.control('CD', 'active' if level else 'inactive')
+        return level
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+if __name__ == '__main__':
+    ser = Serial(None)
+    ser.port = 'spy:///dev/ttyS0'
+    print(ser)

venv/lib/python3.11/site-packages/serial/win32.py

@@ -0,0 +1,354 @@
+#! python
+#
+# Constants and types for use with Windows API, used by serialwin32.py
+#
+# This file is part of pySerial. https://github.com/pyserial/pyserial
+# (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+
+# pylint: disable=invalid-name,too-few-public-methods,protected-access,too-many-instance-attributes
+
+from ctypes import c_ulong, c_void_p, c_int64, c_char, \
+                   WinDLL, sizeof, Structure, Union, POINTER
+from ctypes.wintypes import HANDLE
+from ctypes.wintypes import BOOL
+from ctypes.wintypes import LPCWSTR
+from ctypes.wintypes import DWORD
+from ctypes.wintypes import WORD
+from ctypes.wintypes import BYTE
+_stdcall_libraries = {}
+_stdcall_libraries['kernel32'] = WinDLL('kernel32')
+
+INVALID_HANDLE_VALUE = HANDLE(-1).value
+
+
+# some details of the windows API differ between 32 and 64 bit systems..
+def is_64bit():
+    """Returns true when running on a 64 bit system"""
+    return sizeof(c_ulong) != sizeof(c_void_p)
+
+# ULONG_PTR is a an ordinary number, not a pointer and contrary to the name it
+# is either 32 or 64 bits, depending on the type of windows...
+# so test if this a 32 bit windows...
+if is_64bit():
+    ULONG_PTR = c_int64
+else:
+    ULONG_PTR = c_ulong
+
+
+class _SECURITY_ATTRIBUTES(Structure):
+    pass
+LPSECURITY_ATTRIBUTES = POINTER(_SECURITY_ATTRIBUTES)
+
+
+try:
+    CreateEventW = _stdcall_libraries['kernel32'].CreateEventW
+except AttributeError:
+    # Fallback to non wide char version for old OS...
+    from ctypes.wintypes import LPCSTR
+    CreateEventA = _stdcall_libraries['kernel32'].CreateEventA
+    CreateEventA.restype = HANDLE
+    CreateEventA.argtypes = [LPSECURITY_ATTRIBUTES, BOOL, BOOL, LPCSTR]
+    CreateEvent = CreateEventA
+
+    CreateFileA = _stdcall_libraries['kernel32'].CreateFileA
+    CreateFileA.restype = HANDLE
+    CreateFileA.argtypes = [LPCSTR, DWORD, DWORD, LPSECURITY_ATTRIBUTES, DWORD, DWORD, HANDLE]
+    CreateFile = CreateFileA
+else:
+    CreateEventW.restype = HANDLE
+    CreateEventW.argtypes = [LPSECURITY_ATTRIBUTES, BOOL, BOOL, LPCWSTR]
+    CreateEvent = CreateEventW  # alias
+
+    CreateFileW = _stdcall_libraries['kernel32'].CreateFileW
+    CreateFileW.restype = HANDLE
+    CreateFileW.argtypes = [LPCWSTR, DWORD, DWORD, LPSECURITY_ATTRIBUTES, DWORD, DWORD, HANDLE]
+    CreateFile = CreateFileW  # alias
+
+
+class _OVERLAPPED(Structure):
+    pass
+
+OVERLAPPED = _OVERLAPPED
+
+
+class _COMSTAT(Structure):
+    pass
+
+COMSTAT = _COMSTAT
+
+
+class _DCB(Structure):
+    pass
+
+DCB = _DCB
+
+
+class _COMMTIMEOUTS(Structure):
+    pass
+
+COMMTIMEOUTS = _COMMTIMEOUTS
+
+GetLastError = _stdcall_libraries['kernel32'].GetLastError
+GetLastError.restype = DWORD
+GetLastError.argtypes = []
+
+LPOVERLAPPED = POINTER(_OVERLAPPED)
+LPDWORD = POINTER(DWORD)
+
+GetOverlappedResult = _stdcall_libraries['kernel32'].GetOverlappedResult
+GetOverlappedResult.restype = BOOL
+GetOverlappedResult.argtypes = [HANDLE, LPOVERLAPPED, LPDWORD, BOOL]
+
+ResetEvent = _stdcall_libraries['kernel32'].ResetEvent
+ResetEvent.restype = BOOL
+ResetEvent.argtypes = [HANDLE]
+
+LPCVOID = c_void_p
+
+WriteFile = _stdcall_libraries['kernel32'].WriteFile
+WriteFile.restype = BOOL
+WriteFile.argtypes = [HANDLE, LPCVOID, DWORD, LPDWORD, LPOVERLAPPED]
+
+LPVOID = c_void_p
+
+ReadFile = _stdcall_libraries['kernel32'].ReadFile
+ReadFile.restype = BOOL
+ReadFile.argtypes = [HANDLE, LPVOID, DWORD, LPDWORD, LPOVERLAPPED]
+
+CloseHandle = _stdcall_libraries['kernel32'].CloseHandle
+CloseHandle.restype = BOOL
+CloseHandle.argtypes = [HANDLE]
+
+ClearCommBreak = _stdcall_libraries['kernel32'].ClearCommBreak
+ClearCommBreak.restype = BOOL
+ClearCommBreak.argtypes = [HANDLE]
+
+LPCOMSTAT = POINTER(_COMSTAT)
+
+ClearCommError = _stdcall_libraries['kernel32'].ClearCommError
+ClearCommError.restype = BOOL
+ClearCommError.argtypes = [HANDLE, LPDWORD, LPCOMSTAT]
+
+SetupComm = _stdcall_libraries['kernel32'].SetupComm
+SetupComm.restype = BOOL
+SetupComm.argtypes = [HANDLE, DWORD, DWORD]
+
+EscapeCommFunction = _stdcall_libraries['kernel32'].EscapeCommFunction
+EscapeCommFunction.restype = BOOL
+EscapeCommFunction.argtypes = [HANDLE, DWORD]
+
+GetCommModemStatus = _stdcall_libraries['kernel32'].GetCommModemStatus
+GetCommModemStatus.restype = BOOL
+GetCommModemStatus.argtypes = [HANDLE, LPDWORD]
+
+LPDCB = POINTER(_DCB)
+
+GetCommState = _stdcall_libraries['kernel32'].GetCommState
+GetCommState.restype = BOOL
+GetCommState.argtypes = [HANDLE, LPDCB]
+
+LPCOMMTIMEOUTS = POINTER(_COMMTIMEOUTS)
+
+GetCommTimeouts = _stdcall_libraries['kernel32'].GetCommTimeouts
+GetCommTimeouts.restype = BOOL
+GetCommTimeouts.argtypes = [HANDLE, LPCOMMTIMEOUTS]
+
+PurgeComm = _stdcall_libraries['kernel32'].PurgeComm
+PurgeComm.restype = BOOL
+PurgeComm.argtypes = [HANDLE, DWORD]
+
+SetCommBreak = _stdcall_libraries['kernel32'].SetCommBreak
+SetCommBreak.restype = BOOL
+SetCommBreak.argtypes = [HANDLE]
+
+SetCommMask = _stdcall_libraries['kernel32'].SetCommMask
+SetCommMask.restype = BOOL
+SetCommMask.argtypes = [HANDLE, DWORD]
+
+SetCommState = _stdcall_libraries['kernel32'].SetCommState
+SetCommState.restype = BOOL
+SetCommState.argtypes = [HANDLE, LPDCB]
+
+SetCommTimeouts = _stdcall_libraries['kernel32'].SetCommTimeouts
+SetCommTimeouts.restype = BOOL
+SetCommTimeouts.argtypes = [HANDLE, LPCOMMTIMEOUTS]
+
+WaitForSingleObject = _stdcall_libraries['kernel32'].WaitForSingleObject
+WaitForSingleObject.restype = DWORD
+WaitForSingleObject.argtypes = [HANDLE, DWORD]
+
+CancelIoEx = _stdcall_libraries['kernel32'].CancelIoEx
+CancelIoEx.restype = BOOL
+CancelIoEx.argtypes = [HANDLE, LPOVERLAPPED]
+
+ONESTOPBIT = 0  # Variable c_int
+TWOSTOPBITS = 2  # Variable c_int
+ONE5STOPBITS = 1
+
+NOPARITY = 0  # Variable c_int
+ODDPARITY = 1  # Variable c_int
+EVENPARITY = 2  # Variable c_int
+MARKPARITY = 3
+SPACEPARITY = 4
+
+RTS_CONTROL_HANDSHAKE = 2  # Variable c_int
+RTS_CONTROL_DISABLE = 0  # Variable c_int
+RTS_CONTROL_ENABLE = 1  # Variable c_int
+RTS_CONTROL_TOGGLE = 3  # Variable c_int
+SETRTS = 3
+CLRRTS = 4
+
+DTR_CONTROL_HANDSHAKE = 2  # Variable c_int
+DTR_CONTROL_DISABLE = 0  # Variable c_int
+DTR_CONTROL_ENABLE = 1  # Variable c_int
+SETDTR = 5
+CLRDTR = 6
+
+MS_DSR_ON = 32  # Variable c_ulong
+EV_RING = 256  # Variable c_int
+EV_PERR = 512  # Variable c_int
+EV_ERR = 128  # Variable c_int
+SETXOFF = 1  # Variable c_int
+EV_RXCHAR = 1  # Variable c_int
+GENERIC_WRITE = 1073741824  # Variable c_long
+PURGE_TXCLEAR = 4  # Variable c_int
+FILE_FLAG_OVERLAPPED = 1073741824  # Variable c_int
+EV_DSR = 16  # Variable c_int
+MAXDWORD = 4294967295  # Variable c_uint
+EV_RLSD = 32  # Variable c_int
+
+ERROR_SUCCESS = 0
+ERROR_NOT_ENOUGH_MEMORY = 8
+ERROR_OPERATION_ABORTED = 995
+ERROR_IO_INCOMPLETE = 996
+ERROR_IO_PENDING = 997  # Variable c_long
+ERROR_INVALID_USER_BUFFER = 1784
+
+MS_CTS_ON = 16  # Variable c_ulong
+EV_EVENT1 = 2048  # Variable c_int
+EV_RX80FULL = 1024  # Variable c_int
+PURGE_RXABORT = 2  # Variable c_int
+FILE_ATTRIBUTE_NORMAL = 128  # Variable c_int
+PURGE_TXABORT = 1  # Variable c_int
+SETXON = 2  # Variable c_int
+OPEN_EXISTING = 3  # Variable c_int
+MS_RING_ON = 64  # Variable c_ulong
+EV_TXEMPTY = 4  # Variable c_int
+EV_RXFLAG = 2  # Variable c_int
+MS_RLSD_ON = 128  # Variable c_ulong
+GENERIC_READ = 2147483648  # Variable c_ulong
+EV_EVENT2 = 4096  # Variable c_int
+EV_CTS = 8  # Variable c_int
+EV_BREAK = 64  # Variable c_int
+PURGE_RXCLEAR = 8  # Variable c_int
+INFINITE = 0xFFFFFFFF
+
+
+class N11_OVERLAPPED4DOLLAR_48E(Union):
+    pass
+
+
+class N11_OVERLAPPED4DOLLAR_484DOLLAR_49E(Structure):
+    pass
+
+
+N11_OVERLAPPED4DOLLAR_484DOLLAR_49E._fields_ = [
+    ('Offset', DWORD),
+    ('OffsetHigh', DWORD),
+]
+
+PVOID = c_void_p
+
+N11_OVERLAPPED4DOLLAR_48E._anonymous_ = ['_0']
+N11_OVERLAPPED4DOLLAR_48E._fields_ = [
+    ('_0', N11_OVERLAPPED4DOLLAR_484DOLLAR_49E),
+    ('Pointer', PVOID),
+]
+_OVERLAPPED._anonymous_ = ['_0']
+_OVERLAPPED._fields_ = [
+    ('Internal', ULONG_PTR),
+    ('InternalHigh', ULONG_PTR),
+    ('_0', N11_OVERLAPPED4DOLLAR_48E),
+    ('hEvent', HANDLE),
+]
+_SECURITY_ATTRIBUTES._fields_ = [
+    ('nLength', DWORD),
+    ('lpSecurityDescriptor', LPVOID),
+    ('bInheritHandle', BOOL),
+]
+_COMSTAT._fields_ = [
+    ('fCtsHold', DWORD, 1),
+    ('fDsrHold', DWORD, 1),
+    ('fRlsdHold', DWORD, 1),
+    ('fXoffHold', DWORD, 1),
+    ('fXoffSent', DWORD, 1),
+    ('fEof', DWORD, 1),
+    ('fTxim', DWORD, 1),
+    ('fReserved', DWORD, 25),
+    ('cbInQue', DWORD),
+    ('cbOutQue', DWORD),
+]
+_DCB._fields_ = [
+    ('DCBlength', DWORD),
+    ('BaudRate', DWORD),
+    ('fBinary', DWORD, 1),
+    ('fParity', DWORD, 1),
+    ('fOutxCtsFlow', DWORD, 1),
+    ('fOutxDsrFlow', DWORD, 1),
+    ('fDtrControl', DWORD, 2),
+    ('fDsrSensitivity', DWORD, 1),
+    ('fTXContinueOnXoff', DWORD, 1),
+    ('fOutX', DWORD, 1),
+    ('fInX', DWORD, 1),
+    ('fErrorChar', DWORD, 1),
+    ('fNull', DWORD, 1),
+    ('fRtsControl', DWORD, 2),
+    ('fAbortOnError', DWORD, 1),
+    ('fDummy2', DWORD, 17),
+    ('wReserved', WORD),
+    ('XonLim', WORD),
+    ('XoffLim', WORD),
+    ('ByteSize', BYTE),
+    ('Parity', BYTE),
+    ('StopBits', BYTE),
+    ('XonChar', c_char),
+    ('XoffChar', c_char),
+    ('ErrorChar', c_char),
+    ('EofChar', c_char),
+    ('EvtChar', c_char),
+    ('wReserved1', WORD),
+]
+_COMMTIMEOUTS._fields_ = [
+    ('ReadIntervalTimeout', DWORD),
+    ('ReadTotalTimeoutMultiplier', DWORD),
+    ('ReadTotalTimeoutConstant', DWORD),
+    ('WriteTotalTimeoutMultiplier', DWORD),
+    ('WriteTotalTimeoutConstant', DWORD),
+]
+__all__ = ['GetLastError', 'MS_CTS_ON', 'FILE_ATTRIBUTE_NORMAL',
+           'DTR_CONTROL_ENABLE', '_COMSTAT', 'MS_RLSD_ON',
+           'GetOverlappedResult', 'SETXON', 'PURGE_TXABORT',
+           'PurgeComm', 'N11_OVERLAPPED4DOLLAR_48E', 'EV_RING',
+           'ONESTOPBIT', 'SETXOFF', 'PURGE_RXABORT', 'GetCommState',
+           'RTS_CONTROL_ENABLE', '_DCB', 'CreateEvent',
+           '_COMMTIMEOUTS', '_SECURITY_ATTRIBUTES', 'EV_DSR',
+           'EV_PERR', 'EV_RXFLAG', 'OPEN_EXISTING', 'DCB',
+           'FILE_FLAG_OVERLAPPED', 'EV_CTS', 'SetupComm',
+           'LPOVERLAPPED', 'EV_TXEMPTY', 'ClearCommBreak',
+           'LPSECURITY_ATTRIBUTES', 'SetCommBreak', 'SetCommTimeouts',
+           'COMMTIMEOUTS', 'ODDPARITY', 'EV_RLSD',
+           'GetCommModemStatus', 'EV_EVENT2', 'PURGE_TXCLEAR',
+           'EV_BREAK', 'EVENPARITY', 'LPCVOID', 'COMSTAT', 'ReadFile',
+           'PVOID', '_OVERLAPPED', 'WriteFile', 'GetCommTimeouts',
+           'ResetEvent', 'EV_RXCHAR', 'LPCOMSTAT', 'ClearCommError',
+           'ERROR_IO_PENDING', 'EscapeCommFunction', 'GENERIC_READ',
+           'RTS_CONTROL_HANDSHAKE', 'OVERLAPPED',
+           'DTR_CONTROL_HANDSHAKE', 'PURGE_RXCLEAR', 'GENERIC_WRITE',
+           'LPDCB', 'CreateEventW', 'SetCommMask', 'EV_EVENT1',
+           'SetCommState', 'LPVOID', 'CreateFileW', 'LPDWORD',
+           'EV_RX80FULL', 'TWOSTOPBITS', 'LPCOMMTIMEOUTS', 'MAXDWORD',
+           'MS_DSR_ON', 'MS_RING_ON',
+           'N11_OVERLAPPED4DOLLAR_484DOLLAR_49E', 'EV_ERR',
+           'ULONG_PTR', 'CreateFile', 'NOPARITY', 'CloseHandle']