Contents of /tags/mkinitrd-6_2_1/busybox/console-tools/setkeycodes.c
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Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
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Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 1066 byte(s)
tagged 'mkinitrd-6_2_1'
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 tarball for details. |
10 | */ |
11 | |
12 | //#include <sys/ioctl.h> |
13 | #include "libbb.h" |
14 | |
15 | /* From <linux/kd.h> */ |
16 | struct kbkeycode { |
17 | unsigned scancode, keycode; |
18 | }; |
19 | enum { |
20 | KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */ |
21 | }; |
22 | |
23 | int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
24 | int setkeycodes_main(int argc, char **argv) |
25 | { |
26 | int fd, sc; |
27 | struct kbkeycode a; |
28 | |
29 | if (!(argc & 1) /* if even */ || argc < 2) { |
30 | bb_show_usage(); |
31 | } |
32 | |
33 | fd = get_console_fd_or_die(); |
34 | |
35 | while (argc > 2) { |
36 | a.keycode = xatou_range(argv[2], 0, 127); |
37 | a.scancode = sc = xstrtoul_range(argv[1], 16, 0, 255); |
38 | if (a.scancode > 127) { |
39 | a.scancode -= 0xe000; |
40 | a.scancode += 128; |
41 | } |
42 | ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a, |
43 | "can't set SCANCODE %x to KEYCODE %d", |
44 | sc, a.keycode); |
45 | argc -= 2; |
46 | argv += 2; |
47 | } |
48 | return EXIT_SUCCESS; |
49 | } |