---
title: kIOAccelSurfaceShapeNonBlockingBit
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.2+]
path: kernel/eioaccelsurfaceshapebits/kioaccelsurfaceshapenonblockingbit
---

# kIOAccelSurfaceShapeNonBlockingBit

## Declaration

```occ
kIOAccelSurfaceShapeNonBlockingBit = 0x00000001
```