Lines Matching refs:req
336 IOUSBDevRequest req;
339 req.bmRequestType = USBmakebmRequestType(kUSBIn, kUSBStandard, kUSBDevice);
340 req.bRequest = kUSBRqGetDescriptor;
341 req.wValue = (kUSBStringDesc << 8) | serialIndex;
343 req.wIndex = 0x0409;
344 req.pData = buffer;
345 req.wLength = sizeof(buffer);
346 kr = (*dev)->DeviceRequest(dev, &req);
348 if (kr == kIOReturnSuccess && req.wLenDone > 0) {
352 count = (req.wLenDone - 1) / 2;