---
title: Stop
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.0+]
path: iokit/iocfplugininterfacestruct/1412438-stop
---

# Stop

## Declaration

```swift
var Stop: ((UnsafeMutableRawPointer?) -> IOReturn)!
```