Support for the official fan addon module?

[Reguna]

Hi, I bought a Rock 5C with the official fan/heatsink:

 

https://radxa.com/products/accessories/heatsink-6540b/

 

After installing the Armbian server image, I ran these two commands:

```bash

ls /sys/class/thermal/cooling_device*/type

cat /sys/class/thermal/cooling_device*/type

```

and found that there is no `pwm-fan`.

 

Then I installed the official Radxa Debian image and ran these two commands again. `pwm-fan` exists and I can make it starts spinning by running:

```bash

echo 255 | sudo tee /sys/devices/platform/pwm-fan/hwmon/hwmon*/pwm1

```

 

Is the fan module supported in Armbian? If yes, how do I activate it?

Edited January 18 by Reguna
Posted the incomplete post by mistake

[Kristen]

Hi, I have the same issue, I install the armbian sever image to run omv with the radxa penta sata hat. I can plug the fan on this board too but infortunatly the fan doesn't work on the both plugs.

[Igor]

Try playing with overlays. It must be some that enables this.

 

armbian-config -> system -> kernel -> Manage device tree overlays

 

[Reguna]

I just reinstalled armbian on the rock 5c again. This time the fan works out of the box. Not sure what have cause this🤷‍♂️