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HDAUDIO_DEVICE_INFORMATION_V2 structure (hdaudio.h)

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The _HDAUDIO_DEVICE_INFORMATION_V2 structure specifies the hardware capabilities of the HD Audio bus controller.

Syntax

typedef struct _HDAUDIO_DEVICE_INFORMATION_V2 {
  USHORT  Size;
  USHORT  DeviceVersion;
  USHORT  DriverVersion;
  USHORT  CodecsDetected;
  BOOLEAN IsStripingSupported;
  UCHAR   CtrlRevision;
  USHORT  CtrlVendorId;
  USHORT  CtrlDeviceId;
} HDAUDIO_DEVICE_INFORMATION_V2, *PHDAUDIO_DEVICE_INFORMATION_V2;

Members

Size

Specifies the size in bytes of the _HDAUDIO_DEVICE_INFORMATION_V2 structure.

DeviceVersion

Specifies the HD Audio controller device version.

DriverVersion

Specifies the HD Audio bus driver version.

CodecsDetected

Specifies the number of codecs that the HD Audio controller detects on the HD Audio Link.

IsStripingSupported

Specifies whether the HD Audio controller supports Striping. If TRUE, it supports striping (with at least two SDO lines). If FALSE, it does not support striping.

CtrlRevision

HDA controller revision.

CtrlVendorId

HDA controller vendor ID.

CtrlDeviceId

HDA controller device ID.

Remarks

With the release of Windows 1903 the GetDeviceInformation method of all the HDAUDIO_BUS_INTERFACE* was expanded to also accept a larger input structure: _HDAUDIO_DEVICE_INFORMATION_V2. The original input structure of HDAUDIO_DEVICE_INFORMATION continues to be supported.

If the hdaudbus supports the new size, it inits all the fields and sets the Size field to sizeof(_HDAUDIO_DEVICE_INFORMATION_V2), else it returns the information only for _HDAUDIO_DEVICE_INFORMATION and sets the Size field to sizeof(_HDAUDIO_DEVICE_INFORMATION).

Usage Examples

_HDAUDIO_DEVICE_INFORMATION_V2 info;

_HDAUDIO_DEVICE_INFORMATION_V2_INIT(&info);

status = m_BusIntV3->GetDeviceInformation(m_BusIntV3->Context, (PHDAUDIO_DEVICE_INFORMATION)&info);

The GetDeviceInformation routine uses the _HDAUDIO_DEVICE_INFORMATION_V2 structure to provide information about the HD Audio controller's device-specific capabilities to clients.

Requirements

Requirement Value
Minimum supported client 19H1
Header hdaudio.h (include Hdaudio.h)

See also

HDAUDIO_DEVICE_INFORMATION

GetDeviceInformation