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2009-02-18hp accelerometer: add freefall detectionPavel Machek
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>
2009-01-15lis3: fix documentation to fit into 80 columnsPavel Machek
Fix lis3 documentation to fit into 80 columns. Signed-off-by: Pavel Machek <pavel@suse.cz> 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>
2008-11-12LIS3LV02Dx Accelerometer driverPavel Machek
This adds a driver to the accelerometer sensor found in several HP laptops (under the commercial names of "HP Mobile Data Protection System 3D" and "HP 3D driveguard"). It tries to have more or less the same interfaces as the hdaps and other accelerometer drivers: in sysfs and as a joystick. This driver was first written by Yan Burman. Eric Piel has updated it and slimed it up (including the removal of an interface to access to the free-fall feature of the sensor because it is not reliable enough for now). Pavel Machek removed few more features and switched locking from semaphore to mutex. Several people have contributed to the database of the axes. [eric.piel@tremplin-utc.net: LIS3LV02D: Conform to the new ACPI API] Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Yan Burman <burman.yan@gmail.com> Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>