rfc2217.py 文件源码

def rfc2217_send_subnegotiation(self, option, value=b''):
        """Subnegotiation of RFC 2217 parameters."""
        value = value.replace(IAC, IAC_DOUBLED)
        self.connection.write(IAC + SB + COM_PORT_OPTION + option + value + IAC + SE)

    # - check modem lines, needs to be called periodically from user to
    # establish polling