PATHHardware Documentation > USB Devices > Mac OS USB DDK API Reference

Driver Notification Messages

Additional messages have been defined for handling Mac OS power management features. Version 1.1 of the Mac OS USB software notifies class drivers through the USBDriverNotificationProcPtr with the following messages:

These messages correspond to the Sleep procedure selector codes defined in the Chapter 6, "Power Manager," in Inside Macintosh, "Devices." Your driver should return an appropriate response to these messages as defined in "Writing a Sleep Procedure" Chapter 6, "Power Manager," Inside Macintosh: Devices.

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