Great WinHEC presentation on device interfaces compared to device clases

[This is a repeat of a post I made to NTDEV, but I wanted to make sure I reached as many people as possible.]   I just read this deck, http://download.microsoft.com/download/5/E/6/5E66B27B-988B-4F50-AF3A-C2FF1E62180F/CON-T615_WH08.pptx, which was presented at WinHEC this past year.  It is by far the best explanation of device interfaces and device classes that I have…

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