Hi Maes
I’ve checked out both the Raspbian and Ubuntu images and both seem to update to Linux aml-s905x-cc 6.0.19-02543-g73f2949c2dd9 #1 SMP PREEMPT_DYNAMIC Tue Feb 14 05:59:27 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux if I remember correctly.
Trying to create and enable an overlay in either distro for pps-gpio with the recipe in:
Pps-gpio for s905x - Software - Libre Computer Hub
results in:
[ 531.161421] pps-gpio pps: failed to map GPIO to IRQ: -6
[ 531.161538] pps-gpio: probe of pps failed with error -22
Is this not supported on these boards?
Peter