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Diffstat (limited to 'Documentation/hwmon/lis3lv02d')
| -rw-r--r-- | Documentation/hwmon/lis3lv02d | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/Documentation/hwmon/lis3lv02d b/Documentation/hwmon/lis3lv02d deleted file mode 100644 index 65dfb0c0fd6..00000000000 --- a/Documentation/hwmon/lis3lv02d +++ /dev/null @@ -1,49 +0,0 @@ -Kernel driver lis3lv02d -================== - -Supported chips: - - * STMicroelectronics LIS3LV02DL and LIS3LV02DQ - -Author: - Yan Burman <burman.yan@gmail.com> - Eric Piel <eric.piel@tremplin-utc.net> - - -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 -/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. -rate - reports the sampling rate of the accelerometer device in HZ - -This driver also provides an absolute input class device, allowing -the laptop to act as a pinball machine-esque joystick. - -Axes orientation ----------------- - -For better compatibility between the various laptops. The values reported by -the accelerometer are converted into a "standard" organisation of the axes -(aka "can play neverball out of the box"): - * 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 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. - |