---
title: kIOMapperIDKey
framework: IOKit
role: symbol
role_heading: Global Variable
platforms: [iOS 16.0+, iPadOS 16.0+, Mac Catalyst 13.0+, macOS 10.6+, visionOS 1.0+]
path: iokit/kiomapperidkey
---

# kIOMapperIDKey

## Declaration

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