HDAPS

HDAPS - IBM Active Protection System Linux Driver

This is the Linux driver for the IBM Active Protection System.

Features

• prints accelerometer values
• uses userspace tool to park HD

Project Homepage / Availability

• Project Homepage
• The driver is included in the 2.6-mm series of kernels since August, 26th 2005.
• The driver is now in the mainline (2.6.14rc1).

Status

A driver is included in recent Linux kernels and is actively maintained. However, presently the driver only enables reading of the acceleration data; it does not perform automatic disk head parking. The latter feature is under development. But there are already some useful applications for HDAPS, using the /sys interface it provides. See below.

Applications

• Script for theft alarm using HDAPS
• OpenGL gyroscope hack keeps your display levelled when tilting the ThinkPad
• hdaps-gl a "simple" example animating a 3D-ThinkPad

Interesting links related to this project

• HDAPS mailinglist and its archive
• #hdaps channel on irc.freenode.org
• hdaps projects overview of userspace programs using hdaps
• IBM ThinkPads hardware drive firmware site
• http://www.paul.sladen.org/thinkpad-r31/accelerometer/