[wdmaudiodev] Re: USB Audio class device
- From: "Jerry J. Trantow" <Jerry.Trantow@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 11 Mar 2003 09:08:53 -0600
I don't quite buy into the strings in the descriptor not being =
available.
The new hardware wizard displays the USB product string before the =
drivers
get loaded. Sure would be nice to see this string used by the OS.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of BlazeAudio =
Developer
Sent: Monday, March 10, 2003 7:06 PM
To: wdmaudiodev@xxxxxxxxxxxxx; wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: USB Audio class device
At 11:48 AM 3/10/2003, DJ Sisolak wrote:
Hello Brian,
The strings in the descriptor are taken into account after the device =
=3D
has been enumerated into the system. Therein lays the problem. Before =
=3D
the descriptors can be read, the device has to be discovered. Therefore =
=3D
the name in the INF is used in device manager, but the descriptor =3D
strings ARE used in the control panel apps since they can be read once =
=3D
the device is started by the driver.
Essentially this means that the Device Manager depends on the (static) =
INF
file to provide the device names, correct?
I wish there was a way for the Device Manager to obtain the device names
directly from the driver rather than rely solely on the INF files.
I mean bus drivers do provide names that appear in the new hardware =
found
wizard (in response to (IRP_MN_QUERY_DEVICE_TEXT?).
But then, there are times (say on a PCI bus) when bus drivers have no =
way of
telling the actual device name!
I guess there is no simple solution.
Thanks.
Devendra.=20
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