---
title: ReleasePMAssertion
framework: driverkit
role: symbol
role_heading: Instance Method
path: driverkit/ioservice/releasepmassertion
---

# ReleasePMAssertion

## Declaration

```occ
virtual kern_return_t ReleasePMAssertion(uint64_t assertionID);
```

## Parameters

- `assertionID`: The assertion ID returned by CreatePMAssertion.

## Return Value

Return Value kIOReturnSuccess on success. See IOReturn.h for error codes.

## Discussion

Discussion Release a previously created power management assertion.