st_lsm6dsx : first two values of ism330dlc_gyro are wrong

[Philippe De Muyter <phdm@macq.eu>]

Hello Lorenzo and list,

I use the imu/st_lsm6dsx (i2c) driver to drive a ism330dlc imu.

Every time I start a new acquisition of gyro values, the first two
values read are wrong, as can be see here :

 $ sudo ./iio_generic_buffer -n ism330dlc_gyro -g -c 10 -a
 iio device number being used is 1
 trigger-less mode selected
 No channels are enabled, enabling all channels
 Enabling: in_anglvel_z_en
 Enabling: in_timestamp_en
 Enabling: in_anglvel_y_en
 Enabling: in_anglvel_x_en
 -0.138924 -0.915246 0.470628 1675591514696125669
 -0.012699 -0.362151 0.143208 1675591514772675669
 0.001989 -0.076500 0.035190 1675591514849250669
 0.002295 -0.076194 0.035343 1675591514925825669
 0.002142 -0.076041 0.035343 1675591515002400669
 0.001989 -0.076041 0.035343 1675591515078975669
 0.001836 -0.076347 0.035649 1675591515155525669
 0.001836 -0.076500 0.035649 1675591515232075669
 0.001989 -0.076500 0.035649 1675591515308625669
 0.001989 -0.076347 0.035649 1675591515385200669
 Disabling: in_anglvel_z_en
 Disabling: in_timestamp_en
 Disabling: in_anglvel_y_en
 Disabling: in_anglvel_x_en
 $

Is that a normal behaviour for a gyro in that family or is it be caused
by a software or hardware bug ?

Best regards

Philippe

-- 
Philippe De Muyter +32 2 6101532 Macq SA rue de l'Aeronef 2 B-1140 Bruxelles