Anonymous Declarationenum : unsigned int { ... }; TopicsConstantskIONetworkFeatureHWTimeStampkIONetworkFeatureSWTimeStampkIONetworkFeatureHardwareVlankIONetworkFeatureMultiPageskIONetworkFeatureNoBSDWaitkIONetworkFeatureSoftwareVlankIONetworkFeatureTSOIPv4kIONetworkFeatureTSOIPv6kIONetworkFeatureTransmitCompletionStatuskIONetworkFeatureLRO