When using the Raspi PoE HAT with Arch Linux Aarch64 the fans never spin.
After enabling i2c-dev, creating a new sys/class/i2c-adapter/i2c-0/new_device, sensors command is not able to detect the fan hardware. /sys/class/thermal is missing the cooling_device.
In the kernel config I can't find anything like CONFIG_SENSORS_RPI_POE_FAN (zcat /proc/config.gz | grep 'RPI_POE_FAN')
There seems to be a Linux driver for this rpi-poe-fan hardware at https://github.com/raspberrypi/linux/bl ... -poe-fan.c
What needs to be done to make this rpipoefan driver available in Arch Linux for ARM and make the fan spin at a certain temperature?
PS I think I need to switch from kernel "linux-aarch64" to "linux-raspberrypi4".