---
title: kIOReturnNotOpen
framework: IOKit
role: symbol
role_heading: Global Variable
platforms: [Mac Catalyst 13.0+, macOS 10.9+, xcode 8.0+]
path: iokit/kioreturnnotopen
---

# kIOReturnNotOpen

## Declaration

```swift
var kIOReturnNotOpen: IOReturn { get }
```