[wdmaudiodev] Re: Debugging unknown WDM Driver

  • From: Tim Roberts <timr@xxxxxxxxx>
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 17 Dec 2013 16:20:41 -0800

Max K wrote:
>
> I'm having trouble with my Native Instruments Komplete Audio 6
> Interface, that I use in ASIO Mode with DAW software but also in WDM
> "Mode" with normal windows applications.
>
> The problem (cackling noises) can pretty easily be reproduced by
> switching audio playback from different applications, i.e. Youtube and
> Winamp etc... As I have resonable doubts that NI will soon / ever fix
> the issue, I wanted to see if it maybe is possible to try to reverse
> or debug the driver without any object files... If I got any results,
> maybe I could point the NI devs in the right direction and they'll
> maybe even release a fix.
>
> Now I have little experience with Reverse Engineering using tools like
> IDA but I think to find the issue that actually triggers the
> "corruption" of the playback stream some tools to monitor the playback
> would be a better starting point. Could anyone give me some info on
> what tools to use (if there are any)?

It's a USB device.  Don't they use the stock system driver --
usbaudio.sys?  If so, then there's really only two choices: your
computing platform is underpowered, or their hardware has a problem.

-- 
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.

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