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> */
16struct kbkeycode {
17	unsigned int scancode, keycode;
18};
19enum {
20	KDSETKEYCODE = 0x4B4D  /* write kernel keycode table entry */
21};
22
23int setkeycodes_main(int argc, char** argv);
24int setkeycodes_main(int argc, char** argv)
25{
26	int fd, sc;
27	struct kbkeycode a;
28
29	if (argc % 2 != 1 || argc < 2) {
30		bb_show_usage();
31	}
32
33	fd = get_console_fd();
34
35	while (argc > 2) {
36		a.keycode = xatoul_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			"failed to set SCANCODE %x to KEYCODE %d",
44			sc, a.keycode);
45		argc -= 2;
46		argv += 2;
47	}
48	return EXIT_SUCCESS;
49}
50