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  "title" : "Power Management Control/Status Register"
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# Power Management Control/Status Register

Constants you use when checking bits in the power management register.

## Topics

### Register Bits

[`kPCIPMCSPowerStateD0`](/documentation/PCIDriverKit/kPCIPMCSPowerStateD0)

The device is in the D0 state.

[`kPCIPMCSPowerStateD1`](/documentation/PCIDriverKit/kPCIPMCSPowerStateD1)

The device is in the D1 state.

[`kPCIPMCSPowerStateD2`](/documentation/PCIDriverKit/kPCIPMCSPowerStateD2)

The device is in the D2 state.

[`kPCIPMCSPowerStateD3`](/documentation/PCIDriverKit/kPCIPMCSPowerStateD3)

The device is in the D3 state.

[`kPCIPMCSPowerStateMask`](/documentation/PCIDriverKit/kPCIPMCSPowerStateMask)

A bit mask you use to determine the current power state of the device.

[`kPCIPMCSPMEEnable`](/documentation/PCIDriverKit/kPCIPMCSPMEEnable)

The bit that specifies whether power management events are enabled.

[`kPCIPMCSPMEStatus`](/documentation/PCIDriverKit/kPCIPMCSPMEStatus)

The bit that contains the current state of power management events.

[`kPCIPMCSDefaultEnableBits`](/documentation/PCIDriverKit/kPCIPMCSDefaultEnableBits)

The default power management settings.

[`kPCIPMCSPMEDisableInS3`](/documentation/PCIDriverKit/kPCIPMCSPMEDisableInS3)

A bit for a custom power management event.

[`kPCIPMCSPMEWakeReason`](/documentation/PCIDriverKit/kPCIPMCSPMEWakeReason)

A bit that indicates the reason for waking the device.


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