commit ef2cfc790bf5f0ff189b01eabc0f4feb5e8524df
author Pavel Machek <pavel@suse.cz> Wed Feb 18 14:48:23 2009 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Wed Feb 18 15:37:54 2009 -0800
tree 1e1a4999a6615f66f56ffe19c883e065aa8d3020
parent 3a5093ee6728c8cbe9c039e685fc1fca8f965048

hp accelerometer: add freefall detection

This adds freefall handling to hp_accel driver.  According to HP, it
should just work, without us having to set the chip up by hand.

hpfall.c is example .c program that parks the disk when accelerometer
detects free fall.  It should work; for now, it uses fixed 20seconds
protection period.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>