Exclude Joystick Buttons from Default UInput Capabilities? #246

UInput capabilities default to {ecodes.EV_KEY: ecodes.keys.keys()}. This contains some joystick buttons that conflict with mouse buttons -- users have to explictly declare capabilities like {ecodes.EV_KEY: [ecodes.BTN_LEFT, ecodes.BTN_RIGHT]} to simulate mouse clicks.

I tested all codes in ecodes.keys one by one with capability {ecodes.EV_KEY: [ecodes.BTN_LEFT, code_to_test_for_mouse_button_conflict]}. Found conflicts: 288 - 318, 544 - 547, 704 - 743, in hexadecimal 0x120 - 0x13e, 0x220 - 0x223, 0x2c0 - 0x2e7.

• Linux key codes reference: input-event-codes.h

Since keyboard and mouse simulation is more prevalent than joystick, I suggest to exclude joystick button codes from UInput default.