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iio: hid-sensors: Added device rotation support

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Added usage id processing for device rotation. This uses IIO
interfaces for triggered buffer to present data to user
mode.This uses HID sensor framework for registering callback
events from the sensor hub.
Data is exported to user space in the form of quaternion rotation
format.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Srinivas Pandruvada 2014-04-29 00:51:00 +01:00 • committed by Jonathan Cameron
parent 5082f405b7
commit fc18dddc06
4 changed files with 362 additions and 0 deletions
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1
include/linux/hid-sensor-ids.h
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@ -76,6 +76,7 @@
#define HID_USAGE_SENSOR_ORIENT_TILT_Y 0x200480
#define HID_USAGE_SENSOR_ORIENT_TILT_Z 0x200481
#define HID_USAGE_SENSOR_DEVICE_ORIENTATION 0x20008A
#define HID_USAGE_SENSOR_ORIENT_ROTATION_MATRIX 0x200482
#define HID_USAGE_SENSOR_ORIENT_QUATERNION 0x200483
#define HID_USAGE_SENSOR_ORIENT_MAGN_FLUX 0x200484