[wdmaudiodev] Re: MSVAD sample and Audio engine traces
- From: Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Wed, 7 Mar 2012 01:10:06 +0000
Build all of the missing MSVAD files and put them next to the .inf prior to
installation.
The error below may be due to a cached version of the .inf which still includes
a reference to vaddyn.sys.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Rashee Chadha
Sent: Tuesday, March 6, 2012 4:59 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: MSVAD sample and Audio engine traces
Yes. And If I remove the refernce of this sys file from inf, I get such errors :
Driver package references a missing external file
'C:\Windows\system32\drivers\vaddyn.sys'. Error = 0x00000002
Installing NULL driver!
! dvi: A NULL driver installation is not allowed for this
type of device!
!!! dvi: Cleaning up failed installation (e0000219)
!!! dvi: Default installer: failed!
!!! dvi: Error 0xe0000219: The installation failed because a
function driver was not specified for this device instance.
However this file is not generated as a part of this package.
On Tue, Mar 6, 2012 at 4:50 PM, Matthew van Eerde
<Matthew.van.Eerde@xxxxxxxxxxxxx<mailto:Matthew.van.Eerde@xxxxxxxxxxxxx>> wrote:
All files that are referenced anywhere in the .inf need to be present for the
driver to install, even if they are not used for the given device.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>]
On Behalf Of Tim Roberts
Sent: Tuesday, March 6, 2012 4:42 PM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: MSVAD sample and Audio engine traces
Rashee Chadha wrote:
I have just started working on WDM audio drivers. I am referring to the MSVAD
sample driver which comes with the DDK.
I used the devcon utility to install this driver (on a Win7 VMWare Virtual
Machine):
devcon install msvad.inf *MSVADSimple
Initially I got the error of missing cat file. On commenting out this
dependancy from inf file, I get yet another error of missing vaddyn.sys file.
This sys file was not generated when I built the entire MSVAD solution.
Did you change the INF? The INF in the sample maps the *MSVADSimple device
identifier to vadsimpl.sys. It does not have the name "vaddyn.sys" anywhere.
If you changed that name in the INF, then you have to change the name of the
binary that you build.
Additionally I would like to capture traces for audioeng.dll,audiokse.dll and
portcl.sys. This would help me in understanding the call flow from the audio
engine upto the sample miniport.
Which setting I need to do in order to achieve this.
I'm not convinced that such traces are available.
--
Tim Roberts, timr@xxxxxxxxx<mailto:timr@xxxxxxxxx>
Providenza & Boekelheide, Inc.
Other related posts:
