what will happen when i send ctrl+s (XOFF) to terminal?
will the write call block if write log to /dev/ttyS0 after XOFF?
how will system and user process handle the XOFF notification
what will happen when i send ctrl+s (XOFF) to terminal?
will the write call block if write log to /dev/ttyS0 after XOFF?
how will system and user process handle the XOFF notification