For more information on the I/O Kit, you should read the document I/O Kit Fundamentals, available from Appleās developer documentation website, http://developer.apple.com/documentation. It provides a good general overview of the I/O Kit.
In addition to I/O Kit Fundamentals, the website contains a number of HOWTO documents and topic-specific documents that describe issues specific to particular technology areas such as FireWire and USB.
Last updated: 2006-11-07