|
@@ -13,18 +13,21 @@ Author:
|
|
|
Description
|
|
|
-----------
|
|
|
|
|
|
-This driver provides support for the accelerometer found in various HP laptops
|
|
|
-sporting the feature officially called "HP Mobile Data Protection System 3D" or
|
|
|
-"HP 3D DriveGuard". It detect automatically laptops with this sensor. Known models
|
|
|
-(for now the HP 2133, nc6420, nc2510, nc8510, nc84x0, nw9440 and nx9420) will
|
|
|
-have their axis automatically oriented on standard way (eg: you can directly
|
|
|
-play neverball). The accelerometer data is readable via
|
|
|
+This driver provides support for the accelerometer found in various HP
|
|
|
+laptops sporting the feature officially called "HP Mobile Data
|
|
|
+Protection System 3D" or "HP 3D DriveGuard". It detect automatically
|
|
|
+laptops with this sensor. Known models (for now the HP 2133, nc6420,
|
|
|
+nc2510, nc8510, nc84x0, nw9440 and nx9420) will have their axis
|
|
|
+automatically oriented on standard way (eg: you can directly play
|
|
|
+neverball). The accelerometer data is readable via
|
|
|
/sys/devices/platform/lis3lv02d.
|
|
|
|
|
|
Sysfs attributes under /sys/devices/platform/lis3lv02d/:
|
|
|
position - 3D position that the accelerometer reports. Format: "(x,y,z)"
|
|
|
-calibrate - read: values (x, y, z) that are used as the base for input class device operation.
|
|
|
- write: forces the base to be recalibrated with the current position.
|
|
|
+calibrate - read: values (x, y, z) that are used as the base for input
|
|
|
+ class device operation.
|
|
|
+ write: forces the base to be recalibrated with the current
|
|
|
+ position.
|
|
|
rate - reports the sampling rate of the accelerometer device in HZ
|
|
|
|
|
|
This driver also provides an absolute input class device, allowing
|
|
@@ -39,11 +42,12 @@ the accelerometer are converted into a "standard" organisation of the axes
|
|
|
* When the laptop is horizontal the position reported is about 0 for X and Y
|
|
|
and a positive value for Z
|
|
|
* If the left side is elevated, X increases (becomes positive)
|
|
|
- * If the front side (where the touchpad is) is elevated, Y decreases (becomes negative)
|
|
|
+ * If the front side (where the touchpad is) is elevated, Y decreases
|
|
|
+ (becomes negative)
|
|
|
* If the laptop is put upside-down, Z becomes negative
|
|
|
|
|
|
-If your laptop model is not recognized (cf "dmesg"), you can send an email to the
|
|
|
-authors to add it to the database. When reporting a new laptop, please include
|
|
|
-the output of "dmidecode" plus the value of /sys/devices/platform/lis3lv02d/position
|
|
|
-in these four cases.
|
|
|
+If your laptop model is not recognized (cf "dmesg"), you can send an
|
|
|
+email to the authors to add it to the database. When reporting a new
|
|
|
+laptop, please include the output of "dmidecode" plus the value of
|
|
|
+/sys/devices/platform/lis3lv02d/position in these four cases.
|
|
|
|