NAME¶

tcflush - discard pending data

LIBRARY¶

Standard C library (libc, -lc)

SYNOPSIS¶

#include <termios.h>

int tcflush(int fd, int queue_selector);

DESCRIPTION¶

tcflush() discards data written to the object referred to by fd but not transmitted, or data received but not read, depending on the value of queue_selector:

TCIFLUSH

flushes data received but not read.

TCOFLUSH

flushes data written but not transmitted.

TCIOFLUSH

flushes both data received but not read, and data written but not transmitted.

RETURN VALUE¶

0

on success.

-1

on failure and set errno to indicate the error.

ATTRIBUTES¶

For an explanation of the terms used in this section, see attributes(7).

STANDARDS¶

POSIX.1-2008.

HISTORY¶

POSIX.1-2001.

SEE ALSO¶

tcsendbreak(3), tcdrain(3), tcflow(3), termios(7)