Currently on the latest version of the SOM-RK3399 V2 the AP6398S is the wifi+BT IC solution. In linux this device only brings up a single wifi with the current linux drivers provided in the FredinlyCore image.

Any ideas how to debug this?

Thanks for posting the update. Did you get the MCP2515 part working?

I was able to build everything okay and in some cases was able to probe the device but setup failed after that. Was there anything else you modified in the device trees or the kernel config? Thanks!

I am looking for a way to enable SPI on the RK3399-SOM. Currently I am rebuilding the kernel and trying to modify the nano-pi device tree. Then I use the AndroidTool to flash the new kernel. But this doesnt seem to work? - Is the device tree loaded from the rootfs on boot? Do i need to change the de...