Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-bus-iio-mpu6050

diff --git a/kernel/Documentation/ABI/testing/sysfs-bus-iio-mpu6050 b/kernel/Documentation/ABI/testing/sysfs-bus-iio-mpu6050
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+What:           /sys/bus/iio/devices/iio:deviceX/in_gyro_matrix
+What:           /sys/bus/iio/devices/iio:deviceX/in_accel_matrix
+What:           /sys/bus/iio/devices/iio:deviceX/in_magn_matrix
+KernelVersion:  3.4.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+               This is mounting matrix for motion sensors. Mounting matrix
+               is a 3x3 unitary matrix. A typical mounting matrix would look like
+               [0, 1, 0; 1, 0, 0; 0, 0, -1]. Using this information, it would be
+               easy to tell the relative positions among sensors as well as their
+               positions relative to the board that holds these sensors. Identity matrix
+               [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and device are perfectly
+               aligned with each other. All axes are exactly the same.