1/* termios baud rate selection definitions. Universal version for sane speed_t.
2 Copyright (C) 2019-2026 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef _TERMIOS_H
20# error "Never include <bits/termios-baud.h> directly; use <termios.h> instead."
21#endif
22
23/* POSIX required baud rates */
24#define B0 0U /* Hang up or ispeed == ospeed */
25#define B50 50U
26#define B75 75U
27#define B110 110U
28#define B134 134U /* Really 134.5 baud by POSIX spec */
29#define B150 150U
30#define B200 200U
31#define B300 300U
32#define B600 600U
33#define B1200 1200U
34#define B1800 1800U
35#define B2400 2400U
36#define B4800 4800U
37#define B9600 9600U
38#define B19200 19200U
39#define B38400 38400U
40#ifdef __USE_MISC
41# define EXTA B19200
42# define EXTB B38400
43#endif
44
45/* Other baud rates, "nonstandard" but known to be used */
46#define B7200 7200U
47#define B14400 14400U
48#define B28800 28800U
49#define B33600 33600U
50#define B57600 57600U
51#define B76800 76800U
52#define B115200 115200U
53#define B153600 153600U
54#define B230400 230400U
55#define B307200 307200U
56#define B460800 460800U
57#define B500000 500000U
58#define B576000 576000U
59#define B614400 614400U
60#define B921600 921600U
61#define B1000000 1000000U
62#define B1152000 1152000U
63#define B1500000 1500000U
64#define B2000000 2000000U
65#define B2500000 2500000U
66#define B3000000 3000000U
67#define B3500000 3500000U
68#define B4000000 4000000U
69#define B5000000 5000000U
70#define B10000000 10000000U
71
72#ifdef __USE_GNU
73#define SPEED_MAX 4294967295U /* maximum valid speed_t value */
74#endif
75#define __MAX_BAUD 4294967295U /* legacy alias for SPEED_MAX */
76