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NetAdapterCx limitations

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This topic describes caveats you should be aware of when calling WDF functions from a NetAdapterCx client driver.

Function Description
WdfDeviceInitAssignSDDLString By default NetDeviceInitConfig assigns SDDL_DEVOBJ_SYS_ALL_ADM_RWX_WORLD_RW_RES_R as the default SDDL. If you specify a more restrictive SDDL, the application might not be able to send query OIDs to the adapter.
WdfDeviceInitSetFileObjectConfig The client driver must not set WdfFileObjectWdfCanUseFsContext in the FileObjectClass member of WDF_FILEOBJECT_CONFIG.
WdfDeviceInitAssignName, WdfDeviceInitSetReleaseHardwareOrderOnFailure, WdfDeviceInitSetDeviceType, WdfDeviceInitSetCharacteristics, WdfDeviceInitSetIoType, WdfDeviceInitSetPowerPageable NetDeviceInitConfig calls these routines on behalf of the client driver. The client driver should not call these.
WdfDeviceCreateDeviceInterface If the client driver calls WdfDeviceCreateDeviceInterface with the ReferenceString parameter equal to NULL, NDIS intercepts I/O requests sent to the device interface. To avoid this behavior, specify any reference string.