/* * Copyright (c) 1998-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.2 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include "AppleUSBMergeNub.h" #include <IOKit/usb/IOUSBController.h> #include <IOKit/pci/IOPCIDevice.h> #include <IOKit/IOKitKeys.h> #include <IOKit/IOService.h> #include <libkern/c++/OSNumber.h> #define super IOService OSDefineMetaClassAndStructors(AppleUSBMergeNub, IOService) // this is a special IOUSBDevice driver which will always fail to probe. However, the probe // will have a side effect, which is that it merge a property dictionary into his provider's // parent NUB in the gIOUSBPlane IOService *AppleUSBMergeNub::probe(IOService *provider, SInt32 *score) { const IORegistryPlane * usbPlane = getPlane(kIOUSBPlane); IOUSBDevice *device = OSDynamicCast(IOUSBDevice, provider); if (device && usbPlane) { IOUSBNub *parentNub = OSDynamicCast(IOUSBNub, device->getParentEntry(usbPlane)); if (parentNub) { OSDictionary *providerDict = (OSDictionary*)getProperty("IOProviderParentUSBNubMergeProperties"); if (providerDict) parentNub->getPropertyTable()->merge(providerDict); // merge will verify that this really is a dictionary } } OSDictionary *providerDict = (OSDictionary*)getProperty("IOProviderMergeProperties"); if (providerDict) provider->getPropertyTable()->merge(providerDict); // merge will verify that this really is a dictionary return NULL; // always fail the probe! }