tcflow

Section: C Library Functions (3)
Updated: 202-0-02
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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).

Interface	Attribute	Value
tcflow()	Thread safety	M-Safe

 

STANDARDS

POSIX.-2008.  

HISTORY

POSIX.-2001.  

SEE ALSO

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

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Index

NAME

LIBRARY

SYNOPSIS

DESCRIPTION

RETURN VALUE

ATTRIBUTES

STANDARDS

HISTORY

SEE ALSO