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STOR_DEVICE_POWER_STATE enumeration (storport.h)

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The STOR_DEVICE_POWER_STATE enumerator specifies a storage device power state.

Syntax

typedef enum _STOR_DEVICE_POWER_STATE {
  StorPowerDeviceUnspecified,
  StorPowerDeviceD0,
  StorPowerDeviceD1,
  StorPowerDeviceD2,
  StorPowerDeviceD3,
  StorPowerDeviceMaximum
} STOR_DEVICE_POWER_STATE, *PSTOR_DEVICE_POWER_STATE;

Constants

 
StorPowerDeviceUnspecified
The device power state is unspecified.
StorPowerDeviceD0
Maximum device power state, which corresponds to device working state D0.
StorPowerDeviceD1
The device sleeping state that is less than StorPowerDeviceD0 and greater than StorPowerDeviceD2, which corresponds to device power state D1.
StorPowerDeviceD2
The device sleeping state that is less than StorPowerDeviceD1 and greater than StorPowerDeviceD3, which corresponds to device power state D2.
StorPowerDeviceD3
The lowest-powered device sleeping state, which corresponds to device power state D3.
StorPowerDeviceMaximum
The upper delimiting value on device power states.

Requirements

Requirement Value
Minimum supported client Windows 8
Header storport.h (include Storport.h, Minitape.h, Srb.h)

See also

HwStorUnitControl

SCSI_POWER_REQUEST_BLOCK

STOR_UNIT_CONTROL_POWER