.put_char = rs_put_char,
.flush_chars = rs_flush_chars,
.write_room = rs_write_room,
.put_char = rs_put_char,
.flush_chars = rs_flush_chars,
.write_room = rs_write_room,
.hangup = rs_hangup,
.wait_until_sent = rs_wait_until_sent,
.proc_show = rs_proc_show,
.hangup = rs_hangup,
.wait_until_sent = rs_wait_until_sent,
.proc_show = rs_proc_show,