From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- Documentation/ABI/testing/sysfs-bus-iio-mpu6050 | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-mpu6050 (limited to 'Documentation/ABI/testing/sysfs-bus-iio-mpu6050') diff --git a/Documentation/ABI/testing/sysfs-bus-iio-mpu6050 b/Documentation/ABI/testing/sysfs-bus-iio-mpu6050 new file mode 100644 index 000000000..cb53737aa --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-mpu6050 @@ -0,0 +1,13 @@ +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. -- cgit v1.2.3