Managing Power for PCI Audio Device Driver
Managing Power for PCI Audio Device Driver
- Subject: Managing Power for PCI Audio Device Driver
- From: Dirk Musfeldt <email@hidden>
- Date: Thu, 26 Sep 2002 18:40:28 +0200
Hi all,
I'm having trouble to get the power management right for my driver.
It works well if I do my own setPowerState() but then the Mac won't wake up
after going to sleep, possibly due to a kernel panic which I can't observe
because the screen is still powered down.
If I leave everything to the system software like in PhantomAudioDriver I
get a kernel panic when I do kextload, apparently from
IOAudioDevice::setPowerState().
Any ideas?
Is there any sample code for this matter?
What do I have to watch for when powering down a PCI audio device?
With kind regards
Dirk Musfeldt
Meilenstein Mac OS Software
Neue Strasse 5
D-31582 Nienburg
Germany
Tel: +49 (0) 5021 91 24 44
Fax: +49 (0) 5021 91 24 45
<
http://www.meilenstein.de/>
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