Hello @mthevenot,
I did try the image sent by Arthur.
While I don’t have your hardware available to test it, I could reach some conclusions from there.
The conclusions from the tests are present in the following response: Enable logs in kernel driver - #6 by bruno.tx
Afterwards, I suggested the use of ftrace to better diagnose what was going on when the driver was being loaded.
This has not been conclusive yet, but I gave some suggestions here: Enable logs in kernel driver - #11 by bruno.tx
Best Regards,
Bruno