*/
                        typedef struct
                        {
-                               const struct
+                               struct
                                {
                                        uint8_t  InterfaceNumber; /**< Interface number of the HID interface within the device. */
 
                                struct
                                {
                                        bool     UsingReportProtocol; /**< Indicates if the HID interface is set to Boot or Report protocol mode. */
+                                       uint16_t PrevFrameNum; /**< Frame number of the previous HID report packet opportunity. */
                                        uint16_t IdleCount; /**< Report idle period, in milliseconds, set by the host. */
                                        uint16_t IdleMSRemaining; /**< Total number of milliseconds remaining before the idle period elapsed - this
                                                                                           *   should be decremented by the user application if non-zero each millisecond. */