Anyone can help getting two taps and charging to work on my Nexus 7 2012 model. Looks I need a special rom and kernal. Right now I’m running cm, both taps show up but the 2nd tap doesn’t register pours. All the info about it in the pass seems to be dead links
I am running the stock rom and am not having any issues.
have a look to see that the second tap is mapped correctly in the app and server.
You have to enable USB host mode via a custom kernel. One i used is called kangaroo or something similar. Check this thread