Signed-off-by: Pali Rohár <pali@xxxxxxxxxx> --- man2/ioctl_tty.2 | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/man2/ioctl_tty.2 b/man2/ioctl_tty.2 index 759ea7bba62f..41ff38b6f578 100644 --- a/man2/ioctl_tty.2 +++ b/man2/ioctl_tty.2 @@ -309,6 +309,21 @@ for the argument values .BR TCIFLUSH , .BR TCOFLUSH , .BR TCIOFLUSH . +.TP +.B TIOCSERGETLSR +Argument: +.BI "int\~*" argp +.IP +Get line status register. Status register has +.B TIOCSER_TEMT +bit set when output buffer is empty and also hardware transmitter is physically empty. +.IP +Does not have to be supported by all serial tty drivers. +.IP +.BR tcdrain (3) +does not wait and returns immediately when +.B TIOCSER_TEMT +bit is set. .SS Faking input .TP .B TIOCSTI @@ -890,7 +905,6 @@ main(int argc, char *argv[]) .\" TIOCSERGWILD int * .\" TIOCSERSWILD const int * .\" TIOCSERGSTRUCT struct async_struct * -.\" TIOCSERGETLSR int * .\" TIOCSERGETMULTI struct serial_multiport_struct * .\" TIOCSERSETMULTI const struct serial_multiport_struct * .\" TIOCGSERIAL, TIOCSSERIAL (see above) -- 2.20.1
