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Subjectkeyboard state
Hello,

we need to backport 'cz' X layout to linux console. The actual
layout map can be seen at: http://artax.karlin.mff.cuni.cz/~toman/x/xkbd-cz.png
There is a problem that linux kernel is able to recognize only:
- key itself
- SHITed key

but we need (obvious from the URLed picture) at least
- key itself
- SHIFTed key
- key when CAPSLOCK is on
- SHIFTed key while CAPSLOCK is on

This could be for examle solved with a slight modification of keyboard.c. The
KD_SHIFT constant might be changed to a variable like this:

sed -e 's/key_map = key_maps\[shift_final ^ (1<<KG_SHIFT)\];$/key_map = \
key_maps[shift_final ^ (1<<caps_eval)];/' \
drivers/char/keyboard.c> \
drivers/char/keyboard.c.new

i.e. replace KG_SHIFT with caps_eval which might be one of:
#define KG_SHIFT 0
#define KG_CTRL 2
#define KG_ALT 3
#define KG_ALTGR 1
#define KG_SHIFTL 4
#define KG_SHIFTR 5
#define KG_CTRLL 6
#define KG_CTRLR 7
from include/linux/keyboard.h and then the rest of keyboard handling would
have to be changed to operate caps_eval accorddingly.

Maybe this is not best way how to do it. I'm open to anything else. Another
thing is that console-tools or kbd (which one is used today??) would have
to be changed to handle this new behaviour.

Thanks for any opinions,
Kamil Toman
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