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PCI Macintoshes and CardBus controllers

Q: Why do the oldest PCI Macintoshes (such as the 9500) not recognize a CardBus controller?

A: Because CardBus hadn't been invented yet. Each device must fall into a "class code" model. When the 9500 went GM, there was no class code for CardBus; hence, these machines do not recognize a CardBus device. However, the device will appear in the device tree, but will not be recognized by the Mac OS as CardBus.

[Sep 05 2000]

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