---
title: kIORangeDynamicRangeSDR
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.13.4+]
path: kernel/2937400-anonymous/kiorangedynamicrangesdr
---

# kIORangeDynamicRangeSDR

## Declaration

```occ
kIORangeDynamicRangeSDR = 0x0001
```