blob: 9062caf75a0d4afb6b77b3efdf11bd77bcf05393 [file] [log] [blame]
Erik Andersenabc199e2000-04-28 01:26:31 +00001/* 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 <andersee@debian.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25#include "internal.h"
26#include <stdio.h>
27#include <stdlib.h>
28#include <fcntl.h>
29#include <sys/ioctl.h>
30#include <linux/kd.h>
31
32static const char setkeycodes_usage[] =
33 "setkeycodes SCANCODE KEYCODE ...\n"
34#ifndef BB_FEATURE_TRIVIAL_HELP
35 "\nSet entries into the kernel's scancode-to-keycode map,\n"
36 "allowing unusual keyboards to generate usable keycodes.\n\n"
37 "SCANCODE may be either xx or e0xx (hexadecimal),\n"
38 "and KEYCODE is given in decimal\n"
39#endif
40 ;
41
42extern int
43setkeycodes_main(int argc, char** argv)
44{
45 char *ep;
46 int fd, sc;
47 struct kbkeycode a;
48
49 if (argc % 2 != 1 || argc < 2) {
50 usage(setkeycodes_usage);
51 }
52
53 fd = get_console_fd("/dev/console");
54
55 while (argc > 2) {
56 a.keycode = atoi(argv[2]);
57 a.scancode = sc = strtol(argv[1], &ep, 16);
58 if (*ep) {
59 fatalError("error reading SCANCODE: '%s'\n", argv[1]);
60 }
61 if (a.scancode > 127) {
62 a.scancode -= 0xe000;
63 a.scancode += 128;
64 }
65 if (a.scancode > 255 || a.keycode > 127) {
66 fatalError("SCANCODE or KEYCODE outside bounds\n");
67 }
68 if (ioctl(fd,KDSETKEYCODE,&a)) {
69 perror("KDSETKEYCODE");
70 fatalError("failed to set SCANCODE %x to KEYCODE %d\n", sc, a.keycode);
71 }
72 argc -= 2;
73 argv += 2;
74 }
Eric Andersenb6106152000-06-19 17:25:40 +000075 return( TRUE);
Erik Andersenabc199e2000-04-28 01:26:31 +000076}