---
title: preventSystemSleepFlag
framework: kernel
role: pseudoSymbol
path: kernel/iopowerconnection/preventsystemsleepflag
---

# preventSystemSleepFlag

## Declaration

```occ
unsigned long preventSystemSleepFlag;
```

## Overview

Overview used by parent

## See Also

### Instance Variables

- [stateKnown](kernel/iopowerconnection/stateknown.md)
- [requestFlag](kernel/iopowerconnection/requestflag.md)
- [readyFlag](kernel/iopowerconnection/readyflag.md)
- [preventIdleSleepFlag](kernel/iopowerconnection/preventidlesleepflag.md)
- [desiredDomainState](kernel/iopowerconnection/desireddomainstate.md)
- [currentPowerFlags](kernel/iopowerconnection/currentpowerflags.md)
- [awaitingAck](kernel/iopowerconnection/awaitingack.md)