Hello Lorenzo and list, I do not find a "*mount_matrix" entry in sysfs for a 'ism330dlc_gyro' iio device. Is that normal ? Is a fix available ? Some more info : I have backported drivers/iio/imu/st_lsm6dsx to linux-4.9 in order to drive a ism330dlc imu on a custom board. The chip is correctly detected and two devices are created in /sys/bus/iio/devices/ the first one (where name is 'ism330dlc_gyro') has the following entries : me@proto4:~$ ls /sys/bus/iio/devices/iio\:device1/ buffer in_anglvel_x_raw sampling_frequency current_timestamp_clock in_anglvel_y_raw sampling_frequency_available dev in_anglvel_z_raw scan_elements in_anglvel_scale name subsystem in_anglvel_scale_available power uevent me@proto4:~$ the second one (where name is 'ism330dlc_accel') has those entries : me@proto4:~$ ls /sys/bus/iio/devices/iio\:device2 buffer in_accel_x_raw sampling_frequency current_timestamp_clock in_accel_y_raw sampling_frequency_available dev in_accel_z_raw scan_elements events mount_matrix subsystem in_accel_scale name uevent in_accel_scale_available power me@proto4:~$ The 'mount_matrix' entry is only present in the 'ism330dlc_accel' device but not in the 'ism330dlc_gyro' device. On a similar board, but with mpu9250 imu, I get only one iio:deviceX entry but with two *mount_matrix entries : in_accel_mount_matrix in_anglvel_mount_matrix In both cases, I would have expected only one 'iio:deviceX' entry with only one 'mount_matrix' entry. Best regards Philippe -- Philippe De Muyter +32 2 6101532 Macq SA rue de l'Aeronef 2 B-1140 Bruxelles
