Lines Matching refs:kr
181 kern_return_t kr =
187 if (kr != KERN_SUCCESS)
199 kr = (*device_)->GetDeviceVendor(device_, &vendor_id);
200 if (kr != KERN_SUCCESS)
203 kr = (*device_)->GetDeviceProduct(device_, &product_id);
204 if (kr != KERN_SUCCESS)
210 kr = (*device_)->USBDeviceOpen(device_);
211 if (kr != KERN_SUCCESS)
218 kr = (*device_)->GetConfigurationDescriptorPtr(device_, 0, &config_desc);
219 if (kr != KERN_SUCCESS)
221 kr = (*device_)->SetConfiguration(device_, config_desc->bConfigurationValue);
222 if (kr != KERN_SUCCESS)
245 kr = (*device_)->CreateInterfaceIterator(device_, &request, &iter);
246 if (kr != KERN_SUCCESS)
261 kr = IOCreatePlugInInterfaceForService(usb_interface,
266 if (kr != KERN_SUCCESS || !plugin_interface)
288 kr = (*interface_)->USBInterfaceOpen(interface_);
289 if (kr != KERN_SUCCESS)
294 kr = (*interface_)->CreateInterfaceAsyncEventSource(interface_, &source_ref);
295 if (kr != KERN_SUCCESS || !source_ref)
303 kr = (*interface_)->GetNumEndpoints(interface_, &num_endpoints);
304 if (kr != KERN_SUCCESS || num_endpoints < 2)
314 kr = (*interface_)->GetPipeProperties(interface_,
321 if (kr != KERN_SUCCESS || transfer_type != kUSBInterrupt)
340 kr = (*device_)->GetLocationID(device_, &location_id_);
341 if (kr != KERN_SUCCESS)
357 kern_return_t kr = (*interface_)->WritePipeAsync(interface_,
363 if (kr != KERN_SUCCESS) {
447 kern_return_t kr = (*interface_)->ReadPipeAsync(interface_,
453 if (kr != KERN_SUCCESS)