man pages section 3: Basic Library Functions

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Updated: July 2014
 
 

cfsetospeed(3C)

Name

cfsetispeed, cfsetospeed - set input and output baud rate

Synopsis

#include <termios.h>

int cfsetispeed(struct termios *termios_p, speed_t speed);
int cfsetospeed(struct termios *termios_p, speed_t speed);

Description

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.

Return Values

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

Errors

The cfsetispeed() and cfsetospeed() functions may fail if:

EINVAL

The speed value is not a valid baud rate.

EINVAL

The value of speed is outside the range of possible speed values as specified in <termios.h>.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe, and Async-Signal-Safe
Standard

See Also

cfgetispeed(3C), tcsetattr(3C), attributes(5), standards(5), termio(7I)