I am trying to set up Oculus go for android, also trying to get input from controller where can i find the mappings for the controllers to implement this. using OVRInput library. Im using unity 2018
Here you go : https://developer.oculus.com/documentation/unity/latest/concepts/unity-ovrinput/
When you get there…scroll down to the end of the section you will see the actual image mapping as well…hope this helps.