---
title: kIOAccelSurfaceLockInMask
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.3+]
path: kernel/eioaccelsurfacelockbits/kioaccelsurfacelockinmask
---

# kIOAccelSurfaceLockInMask

## Declaration

```occ
kIOAccelSurfaceLockInMask = 0x00000003
```