/* This code shows an example of registering a HID function driver
 * with the Device Layer. While registering the function driver, an initialization
 * data structure must be specified. In this example, hidInit is the HID function
 * driver initialization data structure. */

/* This hid_rpt01 report descriptor describes a 3 button 2
 * axis mouse pointing device */
const uint8_t hid_rpt01[]=
{
    0x06, 0x00, 0xFF,    // Usage Page = 0xFF00 (Vendor Defined Page 1)
    0x09, 0x01,          // Usage (Vendor Usage 1)
    0xA1, 0x01,          // Collection (Application)
    0x19, 0x01,          // Usage Minimum
    0x29, 0x40,          // Usage Maximum     //64 input usages total (0x01 to 0x40)
    0x15, 0x01,          // Logical Minimum (data bytes in the report may have minimum value = 0x00)
    0x25, 0x40,          // Logical Maximum (data bytes in the report may have maximum value = 0x00FF = unsigned 255)
    0x75, 0x08,          // Report Size: 8-bit field size
    0x95, 0x40,          // Report Count: Make sixty-four 8-bit fields (the next time the parser hits an "Input", "Output",
                         // or "Feature" item)
    0x81, 0x00,          // Input (Data, Array, Abs): Instantiates input packet fields based on the previous report size,
                         // count, logical min/max, and usage.
    0x19, 0x01,          // Usage Minimum
    0x29, 0x40,          // Usage Maximum     //64 output usages total (0x01 to 0x40)
    0x91, 0x00,          // Output (Data, Array, Abs): Instantiates output packet fields.  Uses same report size and
                         // count as "Input" fields, since nothing new or different was specified to the parser since
                         // the "Input" item.
    0xC0                 // End Collection
};

/* HID Function Driver Initialization data structure. This
 * contains the size of the report descriptor and a pointer
 * to the report descriptor. If there are multiple HID instances
 * each with different report descriptors, multiple such data
 * structures may be needed */

USB_DEVICE_HID_INITIALIZATION hidInit =
{
    sizeof(hid_rpt01), // Size of the report
    (uint8_t *)&hid_rpt01 // Pointer to the report
    1, // Send queue size is 1. We will not queue up reports.
    0 // Receive queue size 0. We will not receive reports.
};

/* The HID function driver instance is now registered with
 * device layer through the function driver registration
 * table. */

const USB_DEVICE_FUNCTION_REGISTRATION_TABLE funcRegistrationTable[1] =
{
    {
         .speed = USB_SPEED_FULL|USB_SPEED_HIGH,    // Supported speed
         .configurationValue = 1,                   // To be initialized for Configuration 1
         .interfaceNumber = 0,                      // Starting interface number
         .numberOfInterfaces = 1,                   // Number of Interfaces
         .funcDriverIndex = 0,                      // Function Driver instance index is 0
         .funcDriverInit = &hidInit,                // Function Driver Initialization
         .driver = USB_DEVICE_HID_FUNCTION_DRIVER   // Pointer to the function driver - Device Layer Interface functions
     }
};