---
title: GetDeviceSubClass
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbdeviceinterface942/2977159-getdevicesubclass
---

# GetDeviceSubClass

## Declaration

```occ
IOReturn (*GetDeviceSubClass)(void *self, UInt8 *devSubClass);
```