[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * setkeycodes
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| 4 | *
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| 5 | * Copyright (C) 1994-1998 Andries E. Brouwer <aeb@cwi.nl>
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| 6 | *
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| 7 | * Adjusted for BusyBox by Erik Andersen <andersen@codepoet.org>
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| 8 | *
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| 9 | * This program is free software; you can redistribute it and/or modify
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| 10 | * it under the terms of the GNU General Public License as published by
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| 11 | * the Free Software Foundation; either version 2 of the License, or
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| 12 | * (at your option) any later version.
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| 13 | *
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| 14 | * This program is distributed in the hope that it will be useful,
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 17 | * General Public License for more details.
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| 18 | *
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| 19 | * You should have received a copy of the GNU General Public License
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| 20 | * along with this program; if not, write to the Free Software
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| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 22 | *
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| 23 | */
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| 24 |
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| 25 | #include <stdio.h>
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| 26 | #include <stdlib.h>
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| 27 | #include <fcntl.h>
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| 28 | #include <sys/ioctl.h>
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| 29 | #include "busybox.h"
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| 30 |
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| 31 |
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| 32 | /* From <linux/kd.h> */
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| 33 | struct kbkeycode {
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| 34 | unsigned int scancode, keycode;
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| 35 | };
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| 36 | enum {
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| 37 | KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
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| 38 | };
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| 39 |
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| 40 | extern int
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| 41 | setkeycodes_main(int argc, char** argv)
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| 42 | {
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| 43 | char *ep;
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| 44 | int fd, sc;
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| 45 | struct kbkeycode a;
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| 46 |
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| 47 | if (argc % 2 != 1 || argc < 2) {
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| 48 | bb_show_usage();
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| 49 | }
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| 50 |
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| 51 | fd = get_console_fd();
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| 52 |
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| 53 | while (argc > 2) {
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| 54 | a.keycode = atoi(argv[2]);
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| 55 | a.scancode = sc = strtol(argv[1], &ep, 16);
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| 56 | if (*ep) {
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| 57 | bb_error_msg_and_die("error reading SCANCODE: '%s'", argv[1]);
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| 58 | }
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| 59 | if (a.scancode > 127) {
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| 60 | a.scancode -= 0xe000;
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| 61 | a.scancode += 128;
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| 62 | }
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| 63 | if (a.scancode > 255 || a.keycode > 127) {
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| 64 | bb_error_msg_and_die("SCANCODE or KEYCODE outside bounds");
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| 65 | }
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| 66 | if (ioctl(fd,KDSETKEYCODE,&a)) {
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| 67 | perror("KDSETKEYCODE");
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| 68 | bb_error_msg_and_die("failed to set SCANCODE %x to KEYCODE %d", sc, a.keycode);
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| 69 | }
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| 70 | argc -= 2;
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| 71 | argv += 2;
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| 72 | }
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| 73 | return EXIT_SUCCESS;
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| 74 | }
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