The Quadstick normally appears on the USB bus to the host PC or console as a Composite USB Device that consists of Gamepad, Mouse and Keyboard Devices. These devices are generically called Human Interface Devices (HID). They each have a specific data report they send to the host over the USB connection. From the perspective of the Quadstick, the data in these reports are the Outputs to which we connect the Inputs from the joystick or sip/puff sensors in the configuration spreadsheets.