| Erik Andersen | abc199e | 2000-04-28 01:26:31 +0000 | [diff] [blame^] | 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 <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 | |
| 32 | static 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 | |
| 42 | extern int |
| 43 | setkeycodes_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 | } |
| 75 | exit( TRUE); |
| 76 | } |