This is a Linux driver for ThinkPad laptops, written by Borislav Deianov and Henrique de Moraes Holschuh. It aims to support various features of these laptops which are accessible through a ThinkPad-specific ACPI framework.
- Thermal monitoring and fan control (hwmon)
- LED indicator lights control
- LCD backlight brightness control
- Speaker/headphone mixer monitor and control (volume, muting)
- Hotkey driver (Fn keys, radio-kill switch)
- Firmware alerts and other user-interface events
works like a charm on my t42p using debian lenny stable.