CFSETISPEED(3C) Standard C Library Functions CFSETISPEED(3C)

cfsetispeed, cfsetospeed
set input and output baud rate

#include <termios.h>
int
cfsetispeed(struct termios *termios_p, speed_t speed);
int
cfsetospeed(struct termios *termios_p, speed_t speed);

The cfsetispeed() function sets the input baud rate stored in the structure pointed to by termios_p to speed.
The cfsetospeed() function sets the output baud rate stored in the structure pointed to by termios_p to speed.
There is no effect on the baud rates set in the hardware until a subsequent successful call to tcsetattr(3C) on the same termios structure.

Upon successful completion, cfsetispeed() and cfsetospeed() return 0. Otherwise −1 is returned, and errno may be set to indicate the error.

The cfsetispeed() and cfsetospeed() functions may fail if:
 
 
The speed value is not a valid baud rate.
 
 
The value of speed is outside the range of possible speed values as specified in <termios.h>.

Standard

MT-Safe
Async-Signal-Safe

cfgetispeed(3C), tcsetattr(3C), attributes(5), standards(5), termio(7I)
January 20, 2019 illumos