---
title: kUSBAudioControlSubClass
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 18.4+, macOS 10.3+]
path: iokit/1424847-interface_subclass/kusbaudiocontrolsubclass
---

# kUSBAudioControlSubClass

## Declaration

```occ
kUSBAudioControlSubClass = 0x01
```