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 <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "busybox.h"


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

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

	if (argc % 2 != 1 || argc < 2) {
		bb_show_usage();
	}

	fd = get_console_fd();

	while (argc > 2) {
		a.keycode = xatoul_range(argv[2], 0, 127);
		a.scancode = sc = xstrtoul_range(argv[1], 16, 0, 255);
		if (a.scancode > 127) {
			a.scancode -= 0xe000;
			a.scancode += 128;
		}
		if (ioctl(fd, KDSETKEYCODE, &a)) {
			bb_perror_msg_and_die("failed to set SCANCODE %x to KEYCODE %d", sc, a.keycode);
		}
		argc -= 2;
		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
12	#include <stdio.h>
13	#include <stdlib.h>
14	#include <fcntl.h>
15	#include <sys/ioctl.h>
16	#include "busybox.h"
17
18
19	/* From <linux/kd.h> */
20	struct kbkeycode {
21	unsigned int scancode, keycode;
22	};
23	enum {
24	KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
25	};
26
27	extern int
28	setkeycodes_main(int argc, char** argv)
29	{
30	int fd, sc;
31	struct kbkeycode a;
32
33	if (argc % 2 != 1 \|\| argc < 2) {
34	bb_show_usage();
35	}
36
37	fd = get_console_fd();
38
39	while (argc > 2) {
40	a.keycode = xatoul_range(argv[2], 0, 127);
41	a.scancode = sc = xstrtoul_range(argv[1], 16, 0, 255);
42	if (a.scancode > 127) {
43	a.scancode -= 0xe000;
44	a.scancode += 128;
45	}
46	if (ioctl(fd, KDSETKEYCODE, &a)) {
47	bb_perror_msg_and_die("failed to set SCANCODE %x to KEYCODE %d", sc, a.keycode);
48	}
49	argc -= 2;
50	argv += 2;
51	}
52	return EXIT_SUCCESS;
53	}