How to fix Fn key on laptops.

[Prakash Shiva]

I see there is no support to Fn key on few laptops. I want to develop a
driver to include Fn key and contribute to opensource.
I am using SONY VAIO laptop running ubuntu 12.03(kernel version: 3.0.51).

Question no 1: How do i find keyboard source code for my laptop(SONY VAIO
VPCEG25N)? I see there is 4 entires in source code for keyboard.c :
                   a.
drivers/input/keyboard/spear-keyboard.c<http://lxr.linux.no/linux+*/drivers/input/keyboard/spear-keyboard.c>
                   b.
drivers/s390/char/keyboard.c<http://lxr.linux.no/linux+*/drivers/s390/char/keyboard.c>

                   c.
drivers/tty/vt/keyboard.c<http://lxr.linux.no/linux+*/drivers/tty/vt/keyboard.c>
                   d.
kernel/debug/kdb/kdb_keyboard.c<http://lxr.linux.no/linux+*/kernel/debug/kdb/kdb_keyboard.c>

Question no 2: Is it possible to tap scancode of Fn key using the source
code?


Thanks and I respect your time.

Regards
Prakash S
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