I can not help you with your specific question. But maybe I can point you in the right direction: Someone implemented a ue4 plugin to use a Wii Remote in the engine. Maybe you can reuse it for this controller:
I can not help you with your specific question. But maybe I can point you in the right direction: Someone implemented a ue4 plugin to use a Wii Remote in the engine. Maybe you can reuse it for this controller: