Re: [PATCHv5 2/3] USB: gadget: Use new composite features in some gadgets

From: Xiaofan Chen
Date: Fri Jul 30 2010 - 19:58:25 EST


On Sat, Jul 31, 2010 at 6:01 AM, David Brownell <david-b@xxxxxxxxxxx> wrote:
>> Or does Windows really care about the vid/pid for
>> a class device somehow?
>
> My understanding is that it does, since it really
> doesn't have a good concept of "class" being the
> generic thing.  INF files embed VIDS/PIDS even
> for drivers implementing class specs.  MSFT was
> being stupid again...
>

It depends. For Mass Storage device and HID device,
no INF file is needed. So the VID/PID really does not
matter for them. For CDC-ACM or USB RNDIS,
an INF is needed.


--
Xiaofan
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