---
title: controllerDidChangePowerState
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioethernetinterface/1585555-controllerdidchangepowerstate
---

# controllerDidChangePowerState

## Declaration

```occ
virtual IOReturn controllerDidChangePowerState(IONetworkController *controller, IOPMPowerFlags flags, UInt32 stateNumber, IOService *policyMaker);
```