[wdmaudiodev] Issue with DRMtest on AVStream driver

  • From: "KS" <wakeup1504@xxxxxxxxx>
  • To: <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Wed, 28 Feb 2007 00:20:56 +0800



I've written an AVStream audio driver for a USB audio device and is facing
some issue when I try to run the DTM DRM Test on my driver. I'm failing the
last test item in the DRM test, which state the failure reason being
portcls.sys not found in the list of authenticate drivers that was expected
to fail. Does anyone know anything about this, for it does not seem to make
sense to me since the AVStream architecture is implemented directly in
KS.sys and does not sit under portcls.sys, which is true for other miniport
audio drivers.


I've also tried to run the same test using the MS usbaudio.sys and this
failure does not occurs. I've also check that the list of drivers verified
by the DRM test is the same for both the usbaudio.sys and my AVStream driver
(ks.sys, usbccgp.sys, usbd.sys, usbohci.sys, drmk.sys and the audio driver)


Thanks for any information.




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