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The HDAUDIO_CODEC_POWER_STATE enumeration defines constants that specify the different power states that HD Audio codecs can support. All states are from DEVICE_POWER_STATE except PowerCodecD3Cold.
Syntax
typedef enum _HDAUDIO_CODEC_POWER_STATE {
PowerCodecUnspecified,
PowerCodecD0,
PowerCodecD1,
PowerCodecD2,
PowerCodecD3,
PowerCodecD3Cold,
PowerCodecMaximum
} HDAUDIO_CODEC_POWER_STATE, *PHDAUDIO_CODEC_POWER_STATE;
Constants
PowerCodecUnspecifiedAn unspecified power state. |
PowerCodecD0Power state D0 |
PowerCodecD1Power state D1 |
PowerCodecD2Power state D2 |
PowerCodecD3Power state D3 |
PowerCodecD3ColdPower state D3 Cold |
PowerCodecMaximumPower state Maximum |
Remarks
For more information about power states, see DEVICE_POWER_STATE.
Requirements
| Requirement | Value |
|---|---|
| Header | hdaudio.h |