 * [[SDL_JoystickClose]]
 * [[SDL_JoystickEventState]]
 * [[SDL_JoystickGetAxis]]
 * [[SDL_JoystickGetBall]]
 * [[SDL_JoystickGetButton]]
 * [[SDL_JoystickGetHat]]
 * [[SDL_JoystickIndex]]
 * [[SDL_JoystickName]]
 * [[SDL_JoystickNumAxes]]
 * [[SDL_JoystickNumBalls]]
 * [[SDL_JoystickNumButtons]]
 * [[SDL_JoystickNumHats]]
 * [[SDL_JoystickOpen]]
 * [[SDL_JoystickOpened]]
 * [[SDL_JoystickUpdate]]
 * [[SDL_NumJoysticks]]
