busybox/console-tools/setkeycodes.c
Denys Vlasenko 2e068e725c setkeycodes: fix handling of 0exx scancodes
function                                             old     new   delta
setkeycodes_main                                     143     130     -13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-05-19 17:15:54 +02:00

48 lines
1018 B
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 "libbb.h"
/* From <linux/kd.h> */
struct kbkeycode {
unsigned scancode, keycode;
};
enum {
KDSETKEYCODE = 0x4B4D /* write kernel keycode table entry */
};
int setkeycodes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int setkeycodes_main(int argc, char **argv)
{
int fd;
struct kbkeycode a;
if (!(argc & 1) /* if even */ || argc < 2) {
bb_show_usage();
}
fd = get_console_fd_or_die();
while (argv[1]) {
int sc = xstrtoul_range(argv[1], 16, 0, 0xe07f);
if (sc >= 0xe000) {
sc -= 0xe000;
sc += 0x0080;
}
a.scancode = sc;
a.keycode = xatou_range(argv[2], 0, 255);
ioctl_or_perror_and_die(fd, KDSETKEYCODE, &a,
"can't set SCANCODE %x to KEYCODE %d",
sc, a.keycode);
argv += 2;
}
return EXIT_SUCCESS;
}