serialposix.py 文件源码

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)