NAME¶

tcflow - suspect transmission or reception of data

LIBRARY¶

Standard C library (libc, -lc)

SYNOPSIS¶

#include <termios.h>

int tcflow(int fd, int action);

DESCRIPTION¶

tcflow() suspends transmission or reception of data on the object referred to by fd, depending on the value of action:

TCOOFF

suspends output.

TCOON

restarts suspended output.

TCIOFF

transmits a STOP character, which stops the terminal device from transmitting data to the system.

TCION

transmits a START character, which starts the terminal device transmitting data to the system.

The default on open of a terminal file is that neither its input nor its output is suspended.

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), tcflush(3), termios(7)