cfsetospeed (3)

PROLOG

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

cfsetospeed --- set output baud rate

SYNOPSIS

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

DESCRIPTION

The cfsetospeed() function shall set the output baud rate stored in the structure pointed to by termios_p to speed. There shall be no effect on the baud rates set in the hardware until a subsequent successful call to tcsetattr() with the same termios structure. Similarly, errors resulting from attempts to set baud rates not supported by the terminal device need not be detected until the tcsetattr() function is called.

RETURN VALUE

Upon successful completion, cfsetospeed() shall return 0; otherwise, it shall return -1 and errno may be set to indicate the error.

ERRORS

The cfsetospeed() function 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>.

The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

None.

RATIONALE

Refer to cfgetispeed().

FUTURE DIRECTIONS

None.

SEE ALSO

cfgetispeed(), cfgetospeed(), cfsetispeed(), tcsetattr() The Base Definitions volume of POSIX.1-2008, Chapter 11, General Terminal Interface, <termios.h>

COPYRIGHT

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see www.kernel.org/doc/man-pages/reporting_bugs.html .