[wdmaudiodev] RegisterSubdevice() and notification
- From: "R. Geller" <foxfriend@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Mon, 21 Nov 2005 01:09:50 -0800 (PST)
I am trying to develop an virtual driver which can
pass audio data to the other device. However I
encounter a problem that the hardware codec driver can
change the playback or recording devices on the fly.
The hardware code driver uses RegisterSubdevice() and
UnregisterSubdevice() to change the devices
dynamically. These two calls don't issue any
unload/reload IRP. Then how can I know the change of
the hardware codec driver?
Does anybody know how the virtual driver can get the
notification for the change of the hardware codec
driver if the virtual driver is on top of the portcls? Thanks
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