描述符

/* USB 双点触摸HID描述符 */
/* HID Report Descriptor Touch */
const u8 Touch_ReportDescriptor[] =
{
    0x05, 0x0d,                    // USAGE_PAGE (Digitizers)
    0x09, 0x04,                    // USAGE (Touch Screen)
    0xa1, 0x01,                    // COLLECTION (Application)
//    0x85, REPORT_ID_TOUCH,         //   REPORT_ID (Touch)
    0x09, 0x22,                    //   USAGE (Finger)
    0xa1, 0x02,                    //     COLLECTION (Logical)
    0x09, 0x42,                    //       USAGE (Tip Switch)
    0x15, 0x00,                    //       LOGICAL_MINIMUM (0)
    0x25, 0x01,                    //       LOGICAL_MAXIMUM (1)
    0x75, 0x01,                    //       REPORT_SIZE (1)
    0x95, 0x01,                    //       REPORT_COUNT (1)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x09, 0x32,                    //       USAGE (In Range)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x09, 0x47,                    //       USAGE (Touch Valid)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x95, 0x05,                    //       REPORT_COUNT (5)
    0x81, 0x03,                    //       INPUT (Cnst,Ary,Abs)
    0x75, 0x08,                    //       REPORT_SIZE (8)
    0x09, 0x51,                    //       USAGE (Contact Identifier)
    0x95, 0x01,                    //       REPORT_COUNT (1)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x05, 0x01,                    //       USAGE_PAGE (Generic Desk..
    0x26, 0xff, 0x7f,              //       LOGICAL_MAXIMUM (32767)
    0x75, 0x10,                    //       REPORT_SIZE (16)
    0x55, 0x00,                    //       UNIT_EXPONENT (0)
    0x65, 0x00,                    //       UNIT (None)
    0x09, 0x30,                    //       USAGE (X)
    0x35, 0x00,                    //       PHYSICAL_MINIMUM (0)
    0x46, 0x00, 0x00,              //       PHYSICAL_MAXIMUM (0)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x09, 0x31,                    //       USAGE (Y)
    0x46, 0x00, 0x00,              //       PHYSICAL_MAXIMUM (0)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0xc0,                          //    END_COLLECTION
    0xa1, 0x02,                    //    COLLECTION (Logical)
    0x05, 0x0d,                    //     USAGE_PAGE (Digitizers)
    0x09, 0x42,                    //       USAGE (Tip Switch)
    0x15, 0x00,                    //       LOGICAL_MINIMUM (0)
    0x25, 0x01,                    //       LOGICAL_MAXIMUM (1)
    0x75, 0x01,                    //       REPORT_SIZE (1)
    0x95, 0x01,                    //       REPORT_COUNT (1)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x09, 0x32,                    //       USAGE (In Range)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x09, 0x47,                    //       USAGE (Touch Valid)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x95, 0x05,                    //       REPORT_COUNT (5)
    0x81, 0x03,                    //       INPUT (Cnst,Ary,Abs)
    0x75, 0x08,                    //       REPORT_SIZE (8)
    0x09, 0x51,                    //       USAGE ( Cotact Identifier)
    0x95, 0x01,                    //       REPORT_COUNT (1)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x05, 0x01,                    //       USAGE_PAGE (Generic Desk..
    0x26, 0xff, 0x7f,              //       LOGICAL_MAXIMUM (32767)
    0x75, 0x10,                    //       REPORT_SIZE (16)
    0x55, 0x00,                    //       UNIT_EXPONENT (0)
    0x65, 0x00,                    //       UNIT (None)
    0x09, 0x30,                    //       USAGE (X)
    0x35, 0x00,                    //       PHYSICAL_MINIMUM (0)
    0x46, 0x00, 0x00,              //       PHYSICAL_MAXIMUM (0)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0x09, 0x31,                    //       USAGE (Y)
    0x46, 0x00, 0x00,              //       PHYSICAL_MAXIMUM (0)
    0x81, 0x02,                    //       INPUT (Data,Var,Abs)
    0xc0,                          //    END_COLLECTION
    0x05, 0x0d,                    //    USAGE_PAGE (Digitizers)
    0x09, 0x54,                    //    USAGE (Contact Count)
    0x95, 0x01,                    //    REPORT_COUNT (1)
    0x75, 0x08,                    //    REPORT_SIZE (8)
    0x15, 0x00,                    //    LOGICAL_MINIMUM (0)
    0x25, 0x08,                    //    LOGICAL_MAXIMUM (8)
    0x81, 0x02,                    //    INPUT (Data,Var,Abs)
    0x09, 0x55,                    //    USAGE(Contact Count Maximum)
    0xb1, 0x02,                    //    FEATURE (Data,Var,Abs)
    0xc0,                          // END_COLLECTION
}