USB_Host_Shield_2.0/examples/HID/USBHIDJoystick/USBHIDJoystick.ino

#include <hid.h>
#include <hiduniversal.h>
#include <usbhub.h>

#include "hidjoystickrptparser.h"

USB Usb;
USBHub Hub(&Usb);
HIDUniversal Hid(&Usb);
JoystickEvents JoyEvents;
JoystickReportParser Joy(&JoyEvents);

void setup() {
        Serial.begin(115200);
        while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
        Serial.println("Start");

        if (Usb.Init() == -1)
                Serial.println("OSC did not start.");

        delay(200);

        if (!Hid.SetReportParser(0, &Joy))
                ErrorMessage<uint8_t > (PSTR("SetReportParser"), 1);
}

void loop() {
        Usb.Task();
}