Reported by @mulander. Only tested with Rogue Legacy so far. While Rogue Legacy usually autodetects game controller if connected (with SDL2 version that has gamecontroller API enabled), it doesn't detect the PS4 controller. Testing with sdl2-jstest passed before.
After unplugging mouse, PS4 controller was recognized. Likely not enough uhid devices in /dev. Can be prevented by using /dev/MAKEDEV to make more devices.
Reported by @mulander. Only tested with Rogue Legacy so far. While Rogue Legacy usually autodetects game controller if connected (with SDL2 version that has gamecontroller API enabled), it doesn't detect the PS4 controller. Testing with sdl2-jstest passed before.