/* * * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The 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! }