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/* vi: set sw=4 ts=4: */
/*
* setkeycodes
*
* Copyright (C) 1994-1998 Andries E. Brouwer <aeb@cwi.nl>
*
* Adjusted for BusyBox by Erik Andersen <andersee@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/ioctl.h>
/* From <linux/kd.h> */
struct kbkeycode {
unsigned int scancode, keycode;
};
#define KDSETKEYCODE 0x4B4D /* write kernel keycode table entry */
static const char setkeycodes_usage[] =
"setkeycodes SCANCODE KEYCODE ...\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nSet entries into the kernel's scancode-to-keycode map,\n"
"allowing unusual keyboards to generate usable keycodes.\n\n"
"SCANCODE may be either xx or e0xx (hexadecimal),\n"
"and KEYCODE is given in decimal\n"
#endif
;
extern int
setkeycodes_main(int argc, char** argv)
{
char *ep;
int fd, sc;
struct kbkeycode a;
if (argc % 2 != 1 || argc < 2) {
usage(setkeycodes_usage);
}
fd = get_console_fd("/dev/console");
while (argc > 2) {
a.keycode = atoi(argv[2]);
a.scancode = sc = strtol(argv[1], &ep, 16);
if (*ep) {
fatalError("error reading SCANCODE: '%s'\n", argv[1]);
}
if (a.scancode > 127) {
a.scancode -= 0xe000;
a.scancode += 128;
}
if (a.scancode > 255 || a.keycode > 127) {
fatalError("SCANCODE or KEYCODE outside bounds\n");
}
if (ioctl(fd,KDSETKEYCODE,&a)) {
perror("KDSETKEYCODE");
fatalError("failed to set SCANCODE %x to KEYCODE %d\n", sc, a.keycode);
}
argc -= 2;
argv += 2;
}
return( TRUE);
}
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