Where are laptop keyboard drivers found?
From what i've read you have 2 situations, where keyboard is handled by some kernel module, and if you install XORG server, for example, it can be also handled by it.
So with the kernel drivers, they should be in something like:
/lib/modules/2.6.2x.xx/kernel/drivers/input/keyboard/
For XORG:
/usr/lib/xorg/modules/input/kbd_drv.so