1CFSETOSPEED(3P) POSIX Programmer's Manual CFSETOSPEED(3P)
2
3
4
6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
10
11
13 cfsetospeed — set output baud rate
14
16 #include <termios.h>
17
18 int cfsetospeed(struct termios *termios_p, speed_t speed);
19
21 The cfsetospeed() function shall set the output baud rate stored in the
22 structure pointed to by termios_p to speed.
23
24 There shall be no effect on the baud rates set in the hardware until a
25 subsequent successful call to tcsetattr() with the same termios struc‐
26 ture. Similarly, errors resulting from attempts to set baud rates not
27 supported by the terminal device need not be detected until the tcse‐
28 tattr() function is called.
29
31 Upon successful completion, cfsetospeed() shall return 0; otherwise, it
32 shall return −1 and errno may be set to indicate the error.
33
35 The cfsetospeed() function may fail if:
36
37 EINVAL The speed value is not a valid baud rate.
38
39 EINVAL The value of speed is outside the range of possible speed values
40 as specified in <termios.h>.
41
42 The following sections are informative.
43
45 None.
46
48 None.
49
51 Refer to cfgetispeed().
52
54 None.
55
57 cfgetispeed(), cfgetospeed(), cfsetispeed(), tcsetattr()
58
59 The Base Definitions volume of POSIX.1‐2008, Chapter 11, General Termi‐
60 nal Interface, <termios.h>
61
63 Portions of this text are reprinted and reproduced in electronic form
64 from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
65 -- Portable Operating System Interface (POSIX), The Open Group Base
66 Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
67 cal and Electronics Engineers, Inc and The Open Group. (This is
68 POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
69 event of any discrepancy between this version and the original IEEE and
70 The Open Group Standard, the original IEEE and The Open Group Standard
71 is the referee document. The original Standard can be obtained online
72 at http://www.unix.org/online.html .
73
74 Any typographical or formatting errors that appear in this page are
75 most likely to have been introduced during the conversion of the source
76 files to man page format. To report such errors, see https://www.ker‐
77 nel.org/doc/man-pages/reporting_bugs.html .
78
79
80
81IEEE/The Open Group 2013 CFSETOSPEED(3P)