---
title: kIOMirrorIsPrimary
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1645091-anonymous/kiomirrorisprimary
---

# kIOMirrorIsPrimary

## Declaration

```occ
kIOMirrorIsPrimary = 0x80000000
```