Driver unloads - do not know why

Discussion in 'Windows Vista Drivers' started by Kai, May 17, 2010.

  1. Kai

    Kai Guest


    My minimal driver (Usb device driver with UMDF) unloads before the framework
    calls the OnD0Entry-method. I used the umdfSkeleton example from the WinDDK
    help as starting point.
    Also I return the correct interface (IPnpCallback) when the framework
    requests it via QueryInterface.
    In every function that is called by the framework I return S_OK, so there
    shouldn't be a problem.
    I have no idea, what I'm doing wrong. Also I can't get any information on
    why the Host-Process might cancel the driver load.
    I hope someone can point me some advise on how to get mor information about
    that error.

    Kai, May 17, 2010
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