To answer your question, I looked at the source code for implementing
the PAUSE_BREAK function when using KDB - and here is the patch:
5152 --- linux.orig/drivers/char/keyboard.c
5153 +++ linux/drivers/char/keyboard.c
5154 @@ -43,6 +43,9 @@
5155 #include <linux/reboot.h>
5156 #include <linux/notifier.h>
5157 #include <linux/jiffies.h>
5158 +#ifdef CONFIG_KDB
5159 +#include <linux/kdb.h>
5160 +#endif /* CONFIG_KDB */
5161
5162 extern void ctrl_alt_del(void);
5163
5164 @@ -1178,6 +1181,13 @@ static void kbd_keycode(unsigned int key
5165 if (keycode < BTN_MISC && printk_ratelimit())
5166 printk(KERN_WARNING
"keyboard.c: can't emulate rawmode for keycode %d\n", keycode);
5167
5168 +#ifdef CONFIG_KDB
5169 + if (down && !rep && keycode == KEY_PAUSE && kdb_on == 1) {
5170 + kdb(KDB_REASON_KEYBOARD, 0, get_irq_regs());
5171 + return;
5172 + }
5173 +#endif /* CONFIG_KDB */
5174 +
5175 #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */
5176 if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1
&& sysrq_alt))) {
5177 if (!sysrq_down) {
And so reading the file, u can get a rough picture of how scancode
from keyboard is detected.
>From above the keys KEY_PAUSE and KEY_LEFTALT are detected, for others
u can then find out in include/linux/input.h.
On Mon, Aug 11, 2008 at 10:43 PM, rishi agrawal <postrishi@xxxxxxxxx> wrote:
> Hello Everyone,
>
> I want to call a function whenever i press a combination of keys like
> " ctrl +f ".
>
> for eg :
>
> If i write a program which will execute a function like foo() on
> pressing " ctrl +c " (using sigaction interface) i will not be able to
> terminate the program on pressing " ctrl +c".
>
> So i want a different set of key combination ( unique and preferably
> ctrl + f ) which can be used to execute function foo() from any where
> in the program.
>
>
> --
> Regards,
> Rishi B. Agrawal
>
> --
> To unsubscribe from this list: send an email with
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>
--
Regards,
Peter Teoh
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