[wdmaudiodev] KSPROPERTY_AUDIO_CHANNEL_CONFIG (Speaker Setup)

  • From: uwekirst <u.kirst@xxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Fri, 8 Jun 2018 08:38:07 +0200


I'm developing an audio driver. It supports KSPROPERTY_AUDIO_CHANNEL_CONFIG and shows the speaker setup.

The driver stores the selected format in the registry and reads the format from the registry on it's initialisation.

But every time the machine reboots the format reverts to the default format which is set by the .inf file via


If I just unload and reload the driver the last selected format remains the same.

My question now is wether this behaviour (format reverts to Stereo on reboot) is intended or am I missing something?




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