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What is the declaration of interface requested by IRP with GUID_DMA_CACHE_COHERENCY_INTERFACE? RRS feed

  • Question

  • GUID_DMA_CACHE_COHERENCY_INTERFACE is a new feature in Windows 10, but I have hard time finding documentation (see WdmGuid.h line 99 in Windows 10 driver kit). 

    1. Do you know if it's required of bus-master DMA drivers to supply methods requested by this interface?

    2. I suspect that IoGetDmaAdapter() crashes simply because my driver doesn't supply functions requested in this interface.  Is this so?


    GregC

    Wednesday, December 13, 2017 3:22 PM

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