Example keys.txt (QWERTY keyboard layout):
Keyboard,L Trigger,Keyboard Q,0,0.000000,1.000000,0 Keyboard,R Trigger,Keyboard E,0,0.000000,1.000000,0 Keyboard,ZL Trigger,Keyboard Z,0,0.000000,1.000000,0 Keyboard,ZR Trigger,Keyboard C,0,0.000000,1.000000,0
Keyboard,Left Stick Click,Keyboard LShift,0,0.000000,1.000000,0 Keyboard,Right Stick Click,Keyboard RShift,0,0.000000,1.000000,0
Mouse,Right Stick X,Mouse X,1,0.000000,1.000000,0 Mouse,Right Stick Y,Mouse Y,1,0.000000,1.000000,0
Keyboard,Right Stick X,Mouse X,2,0.000000,1.000000,0 Keyboard,Right Stick Y,Mouse Y,2,0.000000,1.000000,0
Format: each line = DeviceName,ControlName,Key/Mouse/Axis,Mode,Deadzone,Range,Inverted (use the common Cemu keys.txt style)