[wdmaudiodev] Re: How to avoid prefix number of WDM audio device

  • From: "Matthew van Eerde" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "Matthew.van.Eerde" for DMARC)
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 16 Oct 2018 14:10:22 +0000

Thanks - please tell the customer that Microsoft would like them to file a 
problem report in Feedback Hub for this feature request.

There is a way to put a serial number in the USB descriptor. This in principle 
allows Windows to recognize that the device is the same, even if it’s plugged 
into a different port. But IIRC we had to stop trusting the serial number 
because too many USB peripherals incorrectly had the same serial number as each 
other, so I don’t think even that works anymore.

________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx <wdmaudiodev-bounce@xxxxxxxxxxxxx> on 
behalf of K. Weller <wdmaudio@xxxxxx>
Sent: Tuesday, October 16, 2018 7:05:22 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: How to avoid prefix number of WDM audio device


A customer with a software which needs to be reconfigured after the name of the 
audio device has changed, was asking me if it is possible to avoid this some 
how.

Because they change the USB port very often during there measurements there get 
annoyed because of this.

Well but if it is like this, it is like this.

Thanks for all you help !


Am 16.10.2018 um 15:58 schrieb Matthew van Eerde (Redacted sender 
Matthew.van.Eerde for DMARC):
No. But why do you care?

________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx
<wdmaudiodev-bounce@xxxxxxxxxxxxx><mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx> on 
behalf of K. Weller <wdmaudio@xxxxxx><mailto:wdmaudio@xxxxxx>
Sent: Tuesday, October 16, 2018 1:43:53 AM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: How to avoid prefix number of WDM audio device


so there is no chance to avoid this at all ?


Am 15.10.2018 um 17:27 schrieb Matthew van Eerde (Redacted sender 
Matthew.van.Eerde for DMARC):

It’s nothing to do with your driver, all USB audio devices behave this way.



________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx
<wdmaudiodev-bounce@xxxxxxxxxxxxx><mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx> on 
behalf of K. Weller <wdmaudio@xxxxxx><mailto:wdmaudio@xxxxxx>
Sent: Monday, October 15, 2018 1:29:35 AM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] How to avoid prefix number of WDM audio device

Hi,

if a device with my WDM audio driver is plugged into different USB port,
the audio device name in the Windows Sound Settings will be renamed to :

2- MyAudioDriver

and the next USB port would be:

3- MyAudioDriver

even if there is no other device plugged in at the same time.

Why is this happen ?

As far as I can test, not all drivers have this behavior so it looks it
is a problem of my driver !?

  Is there a why to avoid this behavior ?

If the problem is my driver, how can I track down the reason why this
happens ?


Thanks and best regards,

K.Weller

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