LSM9DS1 with linux kernel 6.1.46

[Angel1]

Hello,

We have been using the LSM9DS1 in our own design with Linux kernel 4.19.x by adding drivers from ST github, and using the iio_generic_buffer tool to read values.
Now we are upgrading to linux kernel 6.1.46 and I have checked that the drivers are included in the "drivers/iio/imu/st_lsm6dsx/" directory. I am trying to use the same tool to retrieve values and I get this error:

iio_generic_buffer -n lsm9ds1-imu_accel -A -g -c 5

iio device number being used is 2
trigger-less mode selected
Enabling all channels
Enabling: in_accel_y_en
Enabling: in_accel_x_en
Enabling: in_timestamp_en
Enabling: in_accel_z_en
Failed to enable buffer '/sys/bus/iio/devices/iio:device2/buffer0': Unknown error 524
Disabling: in_accel_y_en
Disabling: in_accel_x_en
Disabling: in_timestamp_en
Disabling: in_accel_z_en

This error means ENOTSUPP (Operation is not supported) and I have checked in "drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c" that the fifo_ops feature is not included for the LSM9DS1 ID.

I would like to know if you have a patch that includes this feature or even if you could provide your own drivers as you did for previous kernel versions.

Best regards and thank you
Angel

[Federica Bossi]

Hi @Angel1 ,

Just to be sure, are you using our official drivers?

[Angel1]

Hi,

I was using your official drivers with kernel version 4.19.94.

Now, with kernel 6.1.46 I was trying to use drivers included in the official kernel version because in your drivers I can not see any branch/version for kernel 6.x.x

What drivers version should I use with kernel 6.1.46 ?

Best regards and thank you

Angel