IAdapterPowerManagement3 interface

The IAdapterPowerManagement3 interface inherits from IUnknown, and it is used for receiving power management messages.

To register this interface with PortCls, the adapter driver must call PcRegisterAdapterPowerManagement.

Note  If you want to fill the caps structure for your device, your adapter driver can call PcRegisterAdapterPowerManagement from within the AddDevice routine, or before your driver calls AddDevice.


The IAdapterPowerManagement3 interface inherits from the IUnknown interface. IAdapterPowerManagement3 also has these types of members:


The IAdapterPowerManagement3 interface has these methods.

Method Description
IAdapterPowerManagement3::D3ExitLatencyChanged PortCls calls the D3ExitLatencyChanged method while the device is in sleep (D3) power state, to provide a new exit latency value.
IAdapterPowerManagement3::PowerChangeState3 PortCls calls the PowerChangeState3 method to request a change to the new power state. This request is passed on to the adapter driver.


Minimum supported client Windows 8
Minimum supported server Windows Server 2012
Target Platform Windows
Header portcls.h

See also