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Old 29-11-2007, 05:42 PM   #1
Rados3aw Michalski
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Audio driver

Maybe sombody can help my.

I write audio driver enumerated on swenum. My "device" has only one input
pin - microphone and one out pin - wave in. I can use my driver as sound
recodr device but I have one problem.

In topologi I have volum control. But it is not mapped by sndvol32 programm
to mixer line. I can't change volume settings.

topology minidriver topology:
microphone->volume->mux->topology out pin

wave miniport topology
wave input->ADC->wave output

I define phical connection from topology out pin to wave input.

As output for Wave minport i define PCM mono 48 kHZ stream.



ps. My driver is based on simple sample from msvad catalog in DDK. Sample
driver has the same problem with input line mapping for sound contol.


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