Re: Isoc and power

• Subject: Re: Isoc and power
• From: David DeHaven <email@hidden>
• Date: Mon, 6 Oct 2003 22:13:01 -0500

I have a user-space driver that grabs data from a device using one or two isoc pipes. I've registered the "driver" using IORegisterForSystemPower. When the pipes are not in use, everything is fine. The power callback is fired, the device shuts off and the system goes to sleep properly. But (when the system dozes, not forced into sleep ala power key or closing the lid) when either isoc pipe is in use, when the power callback is fired, it shuts the device off after calling AbortPipe and ResetPipe to clear any pending operations and tells the PM system it's ok to go to sleep... then the power callback is fired again with the message the the system will *not* go to sleep.

-DrD-
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