// irb.h

typedef struct _IDE_POWER_INFO {
  IDE_POWER_STATE CurrentPowerState;
  IDE_POWER_STATE DesiredPowerState;
} IDE_POWER_INFO, *PIDE_POWER_INFO;
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Windows Driver Kit DDI reference (ns-irb-_ide_power_info)

_IDE_POWER_INFO structure

Description

The POWER_CHANGE_INFO structure is used in conjunction with the IDE_REQUEST_BLOCK to request a power state change.

Note The ATA port driver and ATA miniport driver models may be altered or unavailable in the future. Instead, we recommend using the Storport driver and Storport miniport driver models.

Members

`CurrentPowerState`

Contains an enumeration value of type IDE_POWER_STATE that indicates the current power state of the device.

`DesiredPowerState`

Contains an enumeration value of type IDE_POWER_STATE that indicates the power state to which the device will be changed.

IDE_POWER_INFO - NtDoc