Thanks for this thread. I noticed today that a printer enclosure fan was not working, and traced it down to the same "invalid argument" error when trying to write sysfs pwm period/duty parameters (kernel 6.6.20).
Ran sudo rpi-update, got kernel 6.6.25. That solved the problem -- and hopefully (fingers crossed) it doesn't add some new problem, but at least my fan control is working again!
Ran sudo rpi-update, got kernel 6.6.25. That solved the problem -- and hopefully (fingers crossed) it doesn't add some new problem, but at least my fan control is working again!
Statistics: Posted by ScottW1 — Fri Apr 12, 2024 12:42 am