[PATCH] ability to change SysRq scancode

[federico <xaero@inwind.it>]

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i release this patch because my keyboard ("Mitsumi Electric Apple
Extended USB Keyboard" Bus=0003 Vendor=05ac Product=0205 Version=0122)
doesn't have a PrintScr key, so cannot send the right scancode, and
KEY_SYSRQ needs to be modified.

i hope that i've done in the right way ;)
it's tested by me, and it's working, yeah i'm pressing the SAK with F13 :P


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diff linux.orig/lib/Kconfig.debug linux/lib/Kconfig.debug
30a31,40
> 	  
> config MAGIC_SYSRQ_SCANCODE
> 	int
> 	prompt "Change default scancode of SysRq key" if MAGIC_SYSRQ
> 	default 99
> 	depends on MAGIC_SYSRQ
> 	help
> 	  If your keyboard hasn't a SysRq key, you can specify another key
> 	  which should act as SysRq. You can find the scancode on your
> 	  keyboard with programs like showkey or evtest.

diff linux.orig/include/linux/input.h linux/include/linux/input.h
206a207,210
> 
> #if defined(CONFIG_MAGIC_SYSRQ) && defined(CONFIG_MAGIC_SYSRQ_SCANCODE)
> #define KEY_SYSRQ		CONFIG_MAGIC_SYSRQ_SCANCODE
> #else
207a212,213
> #endif
>