---
title: kIORegistryPlanesKey
framework: IOKit
role: symbol
role_heading: Global Variable
platforms: [iOS 16.0+, iPadOS 16.0+, Mac Catalyst 13.0+, macOS 10.0+, visionOS 1.0+]
path: iokit/kioregistryplaneskey
---

# kIORegistryPlanesKey

## Declaration

```swift
var kIORegistryPlanesKey: String { get }
```