Once you’ve created an instance, you can update the driver on it using
pnputil.exe /add-driver yournewdriver.inf /install
The /add-driver will add it to the driver store, and /install will apply the
new driver to all the instance IDs that it matches.
________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx <wdmaudiodev-bounce@xxxxxxxxxxxxx> on
behalf of Tim Roberts <timr@xxxxxxxxx>
Sent: Tuesday, August 14, 2018 12:10:48 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: set the default audio format dynamically
during/after driver installation
Johannes Freyberger wrote:
It’s a pure virtual driver without real hardware. Would there be a different
answer depending from this? A different way to set the format for virtual or
real hardware drivers?
Absolutely. The command "devcon install" sounds very inviting, but it doesn't
always do what you think. It pre-installs the driver package, and then it
creates a new fake devnode with the hardware ID you give it. It then starts
the PnP process to find a driver for the devnode it created, just as if you had
plugged in a brand new device.
It always creates a new devnode, even if one already exists. It's very easy to
end up with duplicates. If you change your INF, you must be careful to remove
the old fake devices.
--
Tim Roberts, timr@xxxxxxxxx<mailto:timr@xxxxxxxxx>
Providenza & Boekelheide, Inc.
