@theorytoe Important note: all this hardware is also perfectly usable in Linux, only fingerprint scanner in my ProBook doesn't work — a pity, but not the end of the world, I've read that it works well in other models. In MacBook Pro Late 2011 everything works too — even keyboard backlight, even ambient light sensor! I've even made a script that adjusts backlight according to ambient lighting.
@PurpCat