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microsoft / Network-Adapter-Class-Extension

Network Adapter Class Extension to WDF (NetAdapter Cx) makes it easy to write high quality and high speed drivers for Network Interface Controllers
MIT License
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Driver using Automatic Synchronization does not work anymore #15

Open dapaulid opened 1 year ago

dapaulid commented 1 year ago

It seems to me that the Windows 11 2021 Update broke compatibility with devices that use automatic synchronization:

WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attributes, MY_DEVICE);
attributes.SynchronizationScope = WdfSynchronizationScopeDevice;
status = WdfDeviceCreate( &DeviceInit, &attributes, &device );

This makes a subsequent call to NetAdapterCreate fail with STATUS_WDF_INCOMPATIBLE_EXECUTION_LEVEL (0xc020020c). Before the update (on Windows 10) the driver worked correctly.

Is this expected behavior, or could this be a regression?