Vendor Audio Driver Options

To take advantage of the built-in system support for audio devices, Microsoft recommends that vendors use one of the following:

However, if these options are not sufficient, a vendor can implement one of the following:

  • A proprietary KS filter (see KS Filters)

  • Microsoft does not recommend a proprietary KS filter because they are difficult to implement, and are unnecessary for most ISA, PCI, and USB devices.

  • Stream class minidriver (see Streaming Minidrivers)

  • Microsoft does not recommend a proprietary stream class minidriver because it is difficult to implement, although it can be appropriate for devices that integrate audio and video.

For an in-depth discussion of the available options for providing driver support for an audio device, see Getting Started with WDM Audio Drivers.

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