---
title: kIOAccelSurfaceShapeBlockingBit
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.0+]
path: kernel/eioaccelsurfaceshapebits/kioaccelsurfaceshapeblockingbit
---

# kIOAccelSurfaceShapeBlockingBit

## Declaration

```occ
kIOAccelSurfaceShapeBlockingBit = kIOAccelSurfaceShapeNonBlockingBit
```