// acxelements.h

typedef struct _ACX_AUDIOMODULE_DESCRIPTOR {
  GUID  ClassId;
  ULONG InstanceId;
  ULONG VersionMajor;
  ULONG VersionMinor;
  WCHAR Name[ACX_AUDIOMODULE_MAX_NAME_CCH_SIZE];
} ACX_AUDIOMODULE_DESCRIPTOR, *PACX_AUDIOMODULE_DESCRIPTOR;
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Windows Driver Kit DDI reference (ns-acxelements-acx_audiomodule_descriptor)

Description

The ACX_AUDIOMODULE_DESCRIPTOR is used to define an audio module descriptor structure.

Members

`ClassId`

The GUID identifier of the module, which is defined by the audio device module owner.

`InstanceId`

The identifier, defined by the driver developer, that disambiguates between multiple instances of the same module class in the driver topology.

`VersionMajor`

The major version of the audio module.

`VersionMinor`

The minor version of the audio module.

`Name`

The friendly name of the audio device module for display in UI. The buffer size is ACX_AUDIOMODULE_MAX_NAME_CCH_SIZE including the NULL terminator.

Remarks

Example

Sample Pending

Example usage is shown below.

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

ACX_AUDIOMODULE_DESCRIPTOR - NtDoc