cfsetospeed()

set output baud rate 

Function

SYNOPSIS

#include <termios.h>

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

DESCRIPTION

The cfsetospeed() function sets the output baud rate in the termios structure referenced by *termios_p to speed. There is no effect on the baud rates set in the hardware until a subsequent successful call to tcsetattr().

PARAMETERS

termios_p 

Points to a termios structure.

speed 

Is the baud rate to be set.

RETURN VALUES

If successful, cfsetospeed() returns a value of zero. It returns -1 and sets errno to EFAULT if the termios_p refers to an invalid address.

CONFORMANCE

POSIX.1 (1996), with exceptions.

MULTITHREAD SAFETY LEVEL

Async-signal-safe.

PORTING ISSUES

The NuTCRACKER Platform does not check the validity of speed.

The NuTCRACKER Platform does not supporting setting the baud rate to 0 (B0) for COM ports. Although such a call to cfsetospeed() succeeds, the subsequent call to tcsetattr() fails and sets errno to EINVAL.

AVAILABILITY

MKS Toolkit for Professional Developers
MKS Toolkit for Enterprise Developers
MKS Toolkit for Enterprise Developers 64-Bit Edition

SEE ALSO

Functions:
cfgetispeed(), cfgetospeed(), cfsetispeed(), tcsetattr()

Miscellaneous:
struct termios

MKS Toolkit 9.3 Documentation Build 6.