+               void EVENT_USB_Device_ControlRequest(void);
+               
+               bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
+                                                                 const uint8_t EndpointProperty,
+                                                                 const uint8_t EndpointAddress,
+                                                                 const uint8_t EndpointControl,
+                                                                 uint16_t* const DataLength,
+                                                                 uint8_t* Data) ATTR_NON_NULL_PTR_ARG(1);
+               bool CALLBACK_Audio_Device_GetSetInterfaceProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
+                                                                  const uint8_t Property,
+                                                                  const uint8_t EntityAddress,
+                                                                  const uint16_t Parameter,
+                                                                  uint16_t* const DataLength,
+                                                                  uint8_t* Data);