SimpleDriver.h
/* |
File: SimpleDriver.h |
Description: This file shows how to implement a basic I/O Kit driver kernel extension (KEXT). |
Copyright: Copyright © 2001-2008 Apple Inc. All rights reserved. |
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Change History (most recent first): |
2.0 08/13/2008 Add Leopard user client API for supporting 64-bit user processes. |
Now requires Xcode 3.0 or later to build. |
1.1 05/22/2007 User client performs endian swapping when called from a user process |
running using Rosetta. Updated to produce a universal binary. |
Now requires Xcode 2.2.1 or later to build. |
1.0d3 01/14/2003 New sample. |
*/ |
// Set up a minimal set of availability macros. |
// |
// These macros are useful for conditionally compiling code targeting specific versions |
// of Mac OS X. But the standard availability macros aren't available to kernel code |
// prior to Mac OS X 10.5. Code targeting 10.5 and later should use AvailabilityMacros.h |
// instead of this file. Code targeting 10.6 and later should use Availability.h |
#ifndef MAC_OS_X_VERSION_MIN_REQUIRED |
#ifndef MAC_OS_X_VERSION_10_4 |
#define MAC_OS_X_VERSION_10_4 1040 |
#endif |
#ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ |
#define MAC_OS_X_VERSION_MIN_REQUIRED __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ |
#else |
#define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_4 |
#endif |
#endif |
#include <IOKit/IOService.h> |
#include "UserKernelShared.h" |
struct MySampleStruct; |
class SimpleDriverClassName : public IOService |
{ |
// Declare the metaclass information that is used for runtime type checking of I/O Kit objects. |
// Note that the class name is different when targeting Mac OS X 10.4 because support for that |
// version has to be built as a separate kext. This is because the KPIs for 64-bit user processes |
// to access user clients only exist on Mac OS X 10.5 and later. |
#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 |
OSDeclareDefaultStructors(com_apple_dts_driver_SimpleDriver_10_4) |
#else |
OSDeclareDefaultStructors(com_apple_dts_driver_SimpleDriver) |
#endif |
public: |
// IOService methods |
virtual bool init(OSDictionary* dictionary = 0); |
virtual void free(void); |
virtual IOService* probe(IOService* provider, SInt32* score); |
virtual bool start(IOService* provider); |
virtual void stop(IOService* provider); |
virtual bool willTerminate(IOService* provider, IOOptionBits options); |
virtual bool didTerminate(IOService* provider, IOOptionBits options, bool* defer); |
virtual bool terminate(IOOptionBits options = 0); |
virtual bool finalize(IOOptionBits options); |
// SimpleDriver methods |
virtual IOReturn ScalarIStructI(uint32_t inNumber, MySampleStruct* inStruct, uint32_t inStructSize); |
virtual IOReturn ScalarIStructO(uint32_t inNumber1, uint32_t inNumber2, MySampleStruct* outStruct, uint32_t* outStructSize); |
virtual IOReturn ScalarIScalarO(uint32_t inNumber1, uint32_t inNumber2, uint32_t* outNumber); |
virtual IOReturn StructIStructO(MySampleStruct* inStruct, MySampleStruct* outStruct, uint32_t inStructSize, uint32_t* outStructSize); |
}; |
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