code: function JoyStick(device){
    var self = this;
    Mouse.apply(this, arguments);
    this.on('data', function(ev){
      if(ev.type == InputEvent.EVENT_TYPES.EV_INIT){
        self.emit('init', ev);
      }
    });
  }
docs: [JoyStick description]
  @param {[type]} device [description]