tcischars()

Determine the number of characters waiting to be read

Synopsis:

#include <termios.h>

int tcischars( int filedes );

Library:

libc

Description:

The tcischars() function checks to see how many characters are waiting to be read from the given file descriptor, filedes.

Returns:

The number of characters waiting to be read, or -1 if an error occurred.

Errors:

ENOTTY

The fd argument isn't the file descriptor for a character device.

Classification:

QNX 6