Messages in this thread | | | Date | Tue, 15 Nov 2011 20:02:58 +0100 | Subject | Re: ttyS0 stuck in tty_wait_until_sent when sending break (opened with O_NONBLOCK) | From | Domen Puncer <> |
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On Sun, Nov 6, 2011 at 11:27, Domen Puncer <domen@cba.si> wrote: > write(3, "\301", 1) = 1 > ioctl(3, TCSBRK <unfinished ...> >
Traced this down to flow control. And ioctl(fd, TCSBRK, 1) is tcdrain, so it waited.
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