How to enable can bus (Ubuntu Image)

#1

I want to enable canbus configuration in Ubuntu image. What is the procedure for that.

#2

As far as I understand, you have to activate the device overlay via rsetup, see documentation: https://docs.radxa.com/en/rock5/rock5b/radxa-os/rsetup#overlays

I did that, rebooted the radxa rock 5B but the GPIO pins 3 and 5 are still unnamed and not correctly configured as CAN.

Unfortunately, I can’t get any further with that and need support.
It would be nice if someone could explain this to us.

Thank you in advance.