Re: [PATCH] input: change SysRq keycode for systems without SysRq key
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2007-07-15 18:57:43
Subsystem:
char and misc drivers, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Linus Torvalds
On Sun, 15 Jul 2007, federico ferri wrote:
quoted
(I can imagine it could be done via a /proc/sysrq-keycode virtual file, but that's just one possibility) So, this should turn into a feature request... would you accept feature requests? ( :
Well, this is totally untested, and I won't guarantee that this works at all, but this is how to generally do these kinds of things.. Linus --- drivers/char/keyboard.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 90965b4..e21f52b 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c@@ -157,6 +157,10 @@ static int sysrq_alt_use; #endif static int sysrq_alt; +static int sysrq_key = KEY_SYSRQ; +module_param_named(sysrq_key, sysrq_key, uint, 0644); +MODULE_PARM_DESC(sysrq_key, "The keycode to be used for sysrq"); + /* * Translation of scancodes to keycodes. We set them on only the first * keyboard in the list that accepts the scancode and keycode.
@@ -1139,7 +1143,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw) printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ - if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { + if (keycode == sysrq_key && (sysrq_down || (down == 1 && sysrq_alt))) { if (!sysrq_down) { sysrq_down = down; sysrq_alt_use = sysrq_alt;