18c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/in_gyro_matrix 28c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/in_accel_matrix 38c2ecf20Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/in_magn_matrix 48c2ecf20Sopenharmony_ciKernelVersion: 3.4.0 58c2ecf20Sopenharmony_ciContact: linux-iio@vger.kernel.org 68c2ecf20Sopenharmony_ciDescription: 78c2ecf20Sopenharmony_ci This is mounting matrix for motion sensors. Mounting matrix 88c2ecf20Sopenharmony_ci is a 3x3 unitary matrix. A typical mounting matrix would look like 98c2ecf20Sopenharmony_ci [0, 1, 0; 1, 0, 0; 0, 0, -1]. Using this information, it would be 108c2ecf20Sopenharmony_ci easy to tell the relative positions among sensors as well as their 118c2ecf20Sopenharmony_ci positions relative to the board that holds these sensors. Identity matrix 128c2ecf20Sopenharmony_ci [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and device are perfectly 138c2ecf20Sopenharmony_ci aligned with each other. All axes are exactly the same. 14