busybox/console-tools/setkeycodes.c

/* vi: set sw=4 ts=4: */
/*
 * setkeycodes
 *
 * Copyright (C) 1994-1998 Andries E. Brouwer <aeb@cwi.nl>
 *
 * Adjusted for BusyBox by Erik Andersen <andersen@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */
#include "libbb.h"

/* From <linux/kd.h> */
struct kbkeycode {
	unsigned scancode, keycode;
};
enum {
	KDSETKEYCODE = 0x4B4D  /* write kernel keycode table entry */
};

int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int setkeycodes_main(int argc, char **argv)
{
	int fd;
	struct kbkeycode a;

	if (!(argc & 1) /* if even */ || argc < 2) {
		bb_show_usage();
	}

	fd = get_console_fd_or_die();

	while (argv[1]) {
		int sc = xstrtoul_range(argv[1], 16, 0, 0xe07f);
		if (sc >= 0xe000) {
			sc -= 0xe000;
			sc += 0x0080;
		}
		a.scancode = sc;
		a.keycode = xatou_range(argv[2], 0, 255);
		ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
			"can't set SCANCODE %x to KEYCODE %d",
			sc, a.keycode);
		argv += 2;
	}
	return EXIT_SUCCESS;
}
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	#include "libbb.h"
12
13	/* From <linux/kd.h> */
14	struct kbkeycode {
15	unsigned scancode, keycode;
16	};
17	enum {
18	KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
19	};
20
21	int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
22	int setkeycodes_main(int argc, char **argv)
23	{
24	int fd;
25	struct kbkeycode a;
26
27	if (!(argc & 1) /* if even */ \|\| argc < 2) {
28	bb_show_usage();
29	}
30
31	fd = get_console_fd_or_die();
32
33	while (argv[1]) {
34	int sc = xstrtoul_range(argv[1], 16, 0, 0xe07f);
35	if (sc >= 0xe000) {
36	sc -= 0xe000;
37	sc += 0x0080;
38	}
39	a.scancode = sc;
40	a.keycode = xatou_range(argv[2], 0, 255);
41	ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
42	"can't set SCANCODE %x to KEYCODE %d",
43	sc, a.keycode);
44	argv += 2;
45	}
46	return EXIT_SUCCESS;
47	}