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From: chris.aseltine on 25 Jul 2006 21:48
Eliyas,

> For that, you use the NDIS registered interface guid to enumerate the
> device, identify the device you want to target, get some unique information
> about the device (pdo-name, etc) and send that information (cookie) in the
> ioctl.
>
> In your driver, as the miniport instances are added, you find the same
> unique information about the device in your MiniportInitializeHandler using
> IoGetDeviceProperty and keep it in the miniport-context. You have to have a
> global structure that contains a link to all the miniport contexts.
>
> In your ioctl, walk the miniport context list (protected by a spinlock),
> looking for a matching device based on the cookie. Problem solved.

Thanks -- I totally get it now. I'll definitely use this in my
approach.

-Chris

From: Maxim S. Shatskih on 26 Jul 2006 15:59
> What mechanism would I use from userspace to determine which
> MyUsbDevice* named device objects are present on the system?

PnP device interfaces is for this.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim(a)storagecraft.com
http://www.storagecraft.com

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