[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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[2725] | 9 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 10 | */
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[3232] | 11 |
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| 12 | //usage:#define setkeycodes_trivial_usage
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| 13 | //usage: "SCANCODE KEYCODE..."
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| 14 | //usage:#define setkeycodes_full_usage "\n\n"
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| 15 | //usage: "Set entries into the kernel's scancode-to-keycode map,\n"
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| 16 | //usage: "allowing unusual keyboards to generate usable keycodes.\n\n"
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| 17 | //usage: "SCANCODE may be either xx or e0xx (hexadecimal),\n"
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| 18 | //usage: "and KEYCODE is given in decimal."
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| 19 | //usage:
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| 20 | //usage:#define setkeycodes_example_usage
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| 21 | //usage: "$ setkeycodes e030 127\n"
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| 22 |
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[1765] | 23 | #include "libbb.h"
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[821] | 24 |
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| 25 | /* From <linux/kd.h> */
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| 26 | struct kbkeycode {
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[2725] | 27 | unsigned scancode, keycode;
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[821] | 28 | };
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| 29 | enum {
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| 30 | KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
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| 31 | };
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| 32 |
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[2725] | 33 | int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 34 | int setkeycodes_main(int argc, char **argv)
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[821] | 35 | {
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[2725] | 36 | int fd;
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[1765] | 37 | struct kbkeycode a;
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[821] | 38 |
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[2725] | 39 | if (!(argc & 1) /* if even */ || argc < 2) {
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[1765] | 40 | bb_show_usage();
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[821] | 41 | }
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| 42 |
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[2725] | 43 | fd = get_console_fd_or_die();
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[821] | 44 |
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[2725] | 45 | while (argv[1]) {
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| 46 | int sc = xstrtoul_range(argv[1], 16, 0, 0xe07f);
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| 47 | if (sc >= 0xe000) {
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| 48 | sc -= 0xe000;
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| 49 | sc += 0x0080;
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[1765] | 50 | }
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[2725] | 51 | a.scancode = sc;
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| 52 | a.keycode = xatou_range(argv[2], 0, 255);
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[1765] | 53 | ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
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[2725] | 54 | "can't set SCANCODE %x to KEYCODE %d",
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[1765] | 55 | sc, a.keycode);
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| 56 | argv += 2;
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[821] | 57 | }
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| 58 | return EXIT_SUCCESS;
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| 59 | }
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