hdapsd | HDAPS daemon for IBM/Lenovo ThinkPads and Apple iBooks/PowerBooks | Mehr ...
This is a disk protection user-space daemon. It monitors the acceleration values through the HDAPS or AMS interface and automatically initiates disk head parking if a fall or sliding of the laptop is detected. . It is recommended that you use this daemon with the hdaps module provided by tp-smapi rather the one in the kernel, as this will save you a bit power and will work on a wider range of ThinkPads.
