serialposix.py 文件源码

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)