NOTE: This Technical Note has been
retired. Please see the Technical Notes
page for current documentation.|
You may get the idea when implementing device drivers that
The problem with your driver not being needed when the operating system is going away is that there is more than one way for the operating system to go away. Besides the user choosing Restart or Shutdown from the Special menu, it is possible for the Macintosh operating system to be transformed into an entirely new operating system. This is exactly what happens when A/UX starts.
The A/UX Startup application (Sash in the pre-A/UX 2.0 days) attempts to shut
down the Macintosh operating system as much as possible, including closing all
drivers, loading A/UX, and starting it running. It does not perform a
In summary, A/UX Startup issues a
Inside Macintosh, Volumes II, IV, & V, The Device Manager
Designing Cards and Drivers for the Macintosh Family, Second Edition
NuBus is a trademark of Texas Instruments.
Contact ADC | ADC Site Map | ADC Advanced Search
|For information about Apple Products, please visit Apple.com.|
Contact Apple | Privacy Notice
Copyright © 2002 Apple Computer, Inc. All rights reserved.