if (PipeNum == PRNTInterfaceInfo->Config.DataINPipeNumber)
                {
-                       Size            = DataINEndpoint->EndpointSize;
+                       Size            = le16_to_cpu(DataINEndpoint->EndpointSize);
                        EndpointAddress = DataINEndpoint->EndpointAddress;
                        Token           = PIPE_TOKEN_IN;
                        Type            = EP_TYPE_BULK;
                }
                else if (PipeNum == PRNTInterfaceInfo->Config.DataOUTPipeNumber)
                {
-                       Size            = DataOUTEndpoint->EndpointSize;
+                       Size            = le16_to_cpu(DataOUTEndpoint->EndpointSize);
                        EndpointAddress = DataOUTEndpoint->EndpointAddress;
                        Token           = PIPE_TOKEN_OUT;
                        Type            = EP_TYPE_BULK;
        {
                uint8_t ErrorCode;
 
-               USB_ControlRequest = (USB_Request_Header_t)
-                       {
-                               .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
-                               .bRequest      = REQ_SetInterface,
-                               .wValue        = PRNTInterfaceInfo->State.AlternateSetting,
-                               .wIndex        = PRNTInterfaceInfo->State.InterfaceNumber,
-                               .wLength       = 0,
-                       };
-
-               Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
-               if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
-                 return ErrorCode;
+               if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PRNTInterfaceInfo->State.InterfaceNumber,
+                                                                PRNTInterfaceInfo->State.AlternateSetting)) != HOST_SENDCONTROL_Successful)
+               {
+                       return ErrorCode;
+               }
        }
 
        return HOST_SENDCONTROL_Successful;
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
        return USB_Host_SendControlRequest(PortStatus);
 }
 
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
        return USB_Host_SendControlRequest(NULL);
 }
 
                return HOST_SENDCONTROL_Successful;
        }
 
-       DeviceIDStringLength = SwapEndian_16(DeviceIDStringLength);
+       DeviceIDStringLength = be16_to_cpu(DeviceIDStringLength);
 
        if (DeviceIDStringLength > BufferSize)
          DeviceIDStringLength = BufferSize;