[wdmaudiodev] Re: PortClass audio driver: device initiated change of audio device default format properties

  • From: "Matthew van Eerde" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "Matthew.van.Eerde" for DMARC)
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Thu, 18 Oct 2018 20:00:19 +0000

If your format support changes, raise a KSEVENT_PINCAPS_FORMATCHANGE event. 
Windows will invalidate all currently running streams and requery format 
support.



________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx <wdmaudiodev-bounce@xxxxxxxxxxxxx> on 
behalf of noise@xxxxxxxx <noise@xxxxxxxx>
Sent: Thursday, October 18, 2018 12:01:29 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] PortClass audio driver: device initiated change of audio 
device default format properties

Hi,

I have an external sound device which - beneath others - can control the sample 
rate.
To support Windows audio we are using a portclass driver.
Is it possible to promote a sample rate change from the device switching our 
portclass drivers current "default" format? (at least when the device is 
streaming...?!)

Thanks, for any suggestion where to look!

Viele Grüße/Cheers,
Hagen.

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