USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
 
                /* Save the endpoint if it is an IN type endpoint */
-               if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
+               if ((EndpointData->EndpointAddress & ENDPOINT_DIR_MASK) == ENDPOINT_DIR_IN)
                  DataINEndpoint = EndpointData;
        }