Translate keysyms to ASCII

[Gabriel Duarte]

Hello people,


I working on a small proof of concept keylogger that works on kernel mode.
It's parte of my studies of kernel development.
I'm using the struct "keyboard_notifier_param" to get the keys pressed on
the keyboard(s) attached to the system.

At the end, I print the value, like this:

printk(KERN_DEBUG "KEY== %i", param->value);


According to the definition of the struct "keyboard_notifier_param" at
http://lxr.free-electrons.com/source/include/linux/keyboard.h#L37, the
field value is a  "keycode, unicode value or keysym".

For example, when I press the key a, I get the value 30, but I would like
tranlate it to the ASCII. I managed to create a translation table by
myself, but I think there is another way more stylish to do this, or not? I
googled a lot but could not find a consistent answer.

Any help is appreciated,

Gabriel.

-- 
Gabriel Duarte
Linux User #471185
France / Grenoble - Rhône Alpes
http://genericdev.wordpress.com/
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