---
title: registerPrioritySleepWakeInterest
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.1+]
path: kernel/1579157-registerprioritysleepwakeinteres
---

# registerPrioritySleepWakeInterest

## Declaration

```occ
IONotifier * registerPrioritySleepWakeInterest(IOServiceInterestHandler handler, void *self, void *ref);
```