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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
cfsetispeed — set input baud rate
SYNOPSIS
#include <termios.h>
int cfsetispeed(struct termios *termios_p, speed_t speed);
DESCRIPTION
The cfsetispeed() function shall set the input 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, cfsetispeed() shall return 0; otherwise, −1 shall be returned, and errno may
be set to indicate the error.
ERRORS
The cfsetispeed() 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(), cfsetospeed(), 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
http://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
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 CFSETISPEED(3POSIX)