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Document Revision History

This table describes the changes to I/O Kit Device Driver Design Guidelines.

Date	Notes
2007-03-06	Made minor corrections.
2006-11-07	Updated information on building a universal I/O Kit device driver.
2006-10-04	Added information on debugging on an Intel-based Macintosh and noted that KUNC APIs are unavailable to KEXTs that depend on KPIs.
2006-06-28	Made minor corrections.
2006-05-23	Made minor corrections.
2006-04-04	Clarified the location of the AppleGMACEthernet driver source code.
2005-12-06	Made minor corrections.
2005-10-04	Made minor bug fixes.
2005-09-08	Added a chapter on creating a universal binary version of an I/O Kit device driver.
2005-08-11	Made minor bug fix. Changed title from "Writing an I/O Kit Device Driver".
2005-04-29	Added description of new way to break into kernel debugging mode in Mac OS X v. 10.4.
2005-04-08	Fixed typos. Reorganized Introduction chapter and added note that Objective-C does not supply I/O Kit interfaces.
2004-05-27	Changed outdated links, removed references to `OSMetaClass::failModLoad()` method.
2003-10-10	Added information about changes in memory subsystem to support 64-bit architectures. Added a link to the AppleGMACEthernet driver source code.
2003-09-18	Added definition of `kAny` constant in code listing 4-20, corrected property-key name `device_type` to `device-type`, added description of the default implementation of `newUserClient` method.
2003-05-15	Added note that a symboled kernel is required for the kernel debugging macros to work. Added link to Kernel Debug Kit.
2002-11-01	First publication.

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© 2002, 2007 Apple Inc. All Rights Reserved. (Last updated: 2007-03-06)

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