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Kernel-Mode WDM Audio Components - Windows drivers ...

    https://docs.microsoft.com/en-us/windows-hardware/drivers/audio/kernel-mode-wdm-audio-components
    WDMAud System Driver. The kernel-mode WDMAud system driver …

COM in the Kernel - Windows drivers | Microsoft Docs

    https://docs.microsoft.com/en-us/windows-hardware/drivers/audio/com-in-the-kernel
    Audio port and miniport drivers export device driver interfaces (DDIs) that conform to the Component Object Model (COM). For background information about COM interfaces, see the COM section of the Microsoft Windows SDK documentation. All COM interfaces inherit from the IUnknown interface, which has the methods AddRef, QueryInterface, and Release. Because …

Kernel Streaming Considerations - Windows drivers ...

    https://docs.microsoft.com/en-us/windows-hardware/drivers/audio/kernel-streaming-considerations
    The audio driver should set the KSPROPERTY_JACK_DESCRIPTION2 fields as follows. DeviceStateInfo = 0 JackCapabilities = JACKDESC2_PRESENCE_DETECT_CAPABILITY KSPROPERTY_ONESHOT_RECONNECT. The audio driver’s filter should support KSPROPERTY_ONESHOT_RECONNECT. To create and initialize this structure, the audio driver …

Microsoft Kernel System Audio Device fails - Microsoft ...

    https://answers.microsoft.com/en-us/windows/forum/all/microsoft-kernel-system-audio-device-fails/4e4cdae1-5e79-4295-a1f4-cab2bb802d42
    Microsoft Kernel System Audio Device fails I can't get my sound to work. There is a yellow (!) in the Sound, Video and Game Controllers drop down tree at the file listed as "unknown device" When I try to reinstall driver The Microsoft Kernel System Audio Device fails.

Kernel Streaming Topology to Audio ... - …

    https://docs.microsoft.com/en-us/windows-hardware/drivers/audio/kernel-streaming-topology-to-audio-mixer-api-translation
    WDMAud also handles the mixer API calls and translates them into the equivalent property calls on the filter pins and nodes that are managed by the adapter driver. The KMixer system driver (Kmixer.sys) and SWMidi system driver (Swmidi.sys) are integral components of the kernel audio stack. KMixer provides system-wide audio mixing, bit-depth conversion, …

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