void EVENT_USB_Host_DeviceAttached(void);
                void EVENT_USB_Host_DeviceUnattached(void);
                void EVENT_USB_Host_DeviceEnumerationComplete(void);
                void EVENT_USB_Host_HostError(const uint8_t ErrorCode);
                void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
                                                            const uint8_t SubErrorCode);
                void EVENT_USB_Host_DeviceAttached(void);
                void EVENT_USB_Host_DeviceUnattached(void);
                void EVENT_USB_Host_DeviceEnumerationComplete(void);
                void EVENT_USB_Host_HostError(const uint8_t ErrorCode);
                void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
                                                            const uint8_t SubErrorCode);