device tree overlay - gpio

hello,

thanks for the answer. The problem seems to exist.

I did one more thing, can you please check it too

After I disabled the uart2 cape by commenting it in /boot/uEnv.txt, I was able to load universal cape without problems.

echo cape-universaln > /sys/devices/bone_capemgr.9/slot

then I wanted to have beaglebone to automatically load it at boot time so I modified /boot/uEnv.txt adding the below line

capemgr.enable_partno=cape-universaln

After this, beaglebone green stopped booting. I can’t ssh into it and D2 led blinks twice per second.

I think I bricked it up. I will reflash it with an image from beagleboard.org/latest-images

Can you please tell me what I did wrong