@property
    def cd(self):
        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
Read terminal status line: Carrier Detect
dataset/ETHPy150Open pyserial/pyserial/serial/urlhandler/protocol_socket.py/Serial.cd