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CFSETISPEED(3P)            POSIX Programmer's Manual           CFSETISPEED(3P)



PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may dif-
       fer (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  tcse-
       tattr()  with  the same termios structure. Similarly, errors resulting from attempts to set baud rates not sup-
       ported 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 IEEE Std 1003.1-2001,
       Chapter 11, General Terminal Interface, <termios.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Stan-
       dard  for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifica-
       tions Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,  Inc  and  The
       Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Stan-
       dard, the original IEEE and The Open Group Standard is the referee  document.  The  original  Standard  can  be
       obtained online at http://www.opengroup.org/unix/online.html .



IEEE/The Open Group                  2003                      CFSETISPEED(3P)