1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * setkeycodes
|
---|
4 | *
|
---|
5 | * Copyright (C) 1994-1998 Andries E. Brouwer <aeb@cwi.nl>
|
---|
6 | *
|
---|
7 | * Adjusted for BusyBox by Erik Andersen <andersen@codepoet.org>
|
---|
8 | *
|
---|
9 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
10 | */
|
---|
11 |
|
---|
12 | //usage:#define setkeycodes_trivial_usage
|
---|
13 | //usage: "SCANCODE KEYCODE..."
|
---|
14 | //usage:#define setkeycodes_full_usage "\n\n"
|
---|
15 | //usage: "Set entries into the kernel's scancode-to-keycode map,\n"
|
---|
16 | //usage: "allowing unusual keyboards to generate usable keycodes.\n\n"
|
---|
17 | //usage: "SCANCODE may be either xx or e0xx (hexadecimal),\n"
|
---|
18 | //usage: "and KEYCODE is given in decimal."
|
---|
19 | //usage:
|
---|
20 | //usage:#define setkeycodes_example_usage
|
---|
21 | //usage: "$ setkeycodes e030 127\n"
|
---|
22 |
|
---|
23 | #include "libbb.h"
|
---|
24 |
|
---|
25 | /* From <linux/kd.h> */
|
---|
26 | struct kbkeycode {
|
---|
27 | unsigned scancode, keycode;
|
---|
28 | };
|
---|
29 | enum {
|
---|
30 | KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
|
---|
31 | };
|
---|
32 |
|
---|
33 | int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
34 | int setkeycodes_main(int argc, char **argv)
|
---|
35 | {
|
---|
36 | int fd;
|
---|
37 | struct kbkeycode a;
|
---|
38 |
|
---|
39 | if (!(argc & 1) /* if even */ || argc < 2) {
|
---|
40 | bb_show_usage();
|
---|
41 | }
|
---|
42 |
|
---|
43 | fd = get_console_fd_or_die();
|
---|
44 |
|
---|
45 | while (argv[1]) {
|
---|
46 | int sc = xstrtoul_range(argv[1], 16, 0, 0xe07f);
|
---|
47 | if (sc >= 0xe000) {
|
---|
48 | sc -= 0xe000;
|
---|
49 | sc += 0x0080;
|
---|
50 | }
|
---|
51 | a.scancode = sc;
|
---|
52 | a.keycode = xatou_range(argv[2], 0, 255);
|
---|
53 | ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
|
---|
54 | "can't set SCANCODE %x to KEYCODE %d",
|
---|
55 | sc, a.keycode);
|
---|
56 | argv += 2;
|
---|
57 | }
|
---|
58 | return EXIT_SUCCESS;
|
---|
59 | }
|
---|