according to http://www.mactel-linux.org/wiki/Kernel_Patches
applesmc.patch
* for which system: MacBook, MacBook Pro
* what does it: This patch provides support for the Apple System
Management Controller, which provides the Sudden Motion Sensor,
the light sensors and the keyboard backlight control via sysfs.
--
Dr. Ludovic Rousseau Ludovic.Rousseau@free.fr
-- Normaliser Unix c'est comme pasteuriser le camembert, L.R. --