687     usb_descriptor_union_t *unionDes;  in USB_HostHelperParseAlternateSetting()  local
702     unionDes = (usb_descriptor_union_t *)temp; /* interface extend descriptor start */  in USB_HostHelperParseAlternateSetting()
704         (uint32_t)unionDes +  in USB_HostHelperParseAlternateSetting()
708     while ((uint32_t)unionDes < endPosition)  in USB_HostHelperParseAlternateSetting()
710         if (unionDes->interface.bDescriptorType == USB_DESCRIPTOR_TYPE_INTERFACE)  in USB_HostHelperParseAlternateSetting()
712             if (unionDes->interface.bAlternateSetting == alternateSetting)  in USB_HostHelperParseAlternateSetting()
718 …              unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength);  in USB_HostHelperParseAlternateSetting()
723             unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength);  in USB_HostHelperParseAlternateSetting()
726     if ((uint32_t)unionDes >= endPosition)  in USB_HostHelperParseAlternateSetting()
732     interface->interfaceDesc            = &unionDes->interface;  in USB_HostHelperParseAlternateSetting()
737     interface->interfaceIndex           = unionDes->interface.bInterfaceNumber;  in USB_HostHelperParseAlternateSetting()
740     unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength);  in USB_HostHelperParseAlternateSetting()
741     while ((uint32_t)unionDes < endPosition)  in USB_HostHelperParseAlternateSetting()
743         if ((unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_INTERFACE) &&  in USB_HostHelperParseAlternateSetting()
744             (unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT))  in USB_HostHelperParseAlternateSetting()
748                 interface->interfaceExtension = (uint8_t *)unionDes;  in USB_HostHelperParseAlternateSetting()
750             interface->interfaceExtensionLength += unionDes->common.bLength;  in USB_HostHelperParseAlternateSetting()
751             unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength);  in USB_HostHelperParseAlternateSetting()
762         if ((unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT) ||  in USB_HostHelperParseAlternateSetting()
772             if (((uint32_t)unionDes >= endPosition) ||  in USB_HostHelperParseAlternateSetting()
773                 (unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT))  in USB_HostHelperParseAlternateSetting()
781             temp                       = (void *)unionDes;  in USB_HostHelperParseAlternateSetting()
785 …unionDes                   = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLen…  in USB_HostHelperParseAlternateSetting()
786             while ((uint32_t)unionDes < endPosition)  in USB_HostHelperParseAlternateSetting()
788                 if ((unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT) &&  in USB_HostHelperParseAlternateSetting()
789                     (unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_INTERFACE))  in USB_HostHelperParseAlternateSetting()
793                         epParse->epExtension = (uint8_t *)unionDes;  in USB_HostHelperParseAlternateSetting()
795                     epParse->epExtensionLength += unionDes->common.bLength;  in USB_HostHelperParseAlternateSetting()
796 …              unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength);  in USB_HostHelperParseAlternateSetting()