Rename droidmote linux gamepad

I'm using the Droidmote Android app to use my tablet as a gamepad for my odroid c2 (similar to raspberry pi but uses arm64 architecture.) running debian jessie. I intend to use 2 Android devices for a 2-player game of supertuxkart. Jstest-gtk recognizes them as 2 separate controllers, js0 and js1. But supertuxkart sees them as droidmote x2 and they function as 1 controller. How could I make this work? It seems it would work if I renamed one controller. Thanks!