[wdmaudiodev] Re: General Audio Test over usbaudio.sys

  • From: "M'hand Boughias" <mhand@xxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Fri, 16 May 2014 07:05:03 +0200

Finally, I have found a solution.
After some monitoring, I see that USBAUDIO.SYS look for the registry key
when it is requested the PIN:0 name.
It tries to resolve the KSCATEGORY_AUDIO guid as a category name. But this
key does not exist by default.
To make my test pass I have added this registry key (with dummy values)
thanks to the INF.

On Fri, May 16, 2014 at 5:54 AM, M'hand Boughias <mhand@xxxxxxxxxxxxx>wrote:

> Hi, we are trying to certify a driver package for a usb audio device.
> But with the latest HCK we have a failure with the
> "General Audio Test : KS
> properties\KSPROPSETID_Pin\KSPROPERTY_PIN_NAME\Passing large buffer".
> It tries to get the pin name of the PIN:0 but it fails.
> Indeed when I check the pin names with KSSTUDIO.EXE the request fails on
> the pin0 but succeeds on the other pins, on every usbaudio device I had
> tested.
> Is it a normal behavior of USBAUDIO.SYS?
> Did we miss something inside the INF or the USB Descriptor?
> thanks.

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