---
title: GetInterfaceClass
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbinterfaceinterface942/2977218-getinterfaceclass
---

# GetInterfaceClass

## Declaration

```occ
IOReturn (*GetInterfaceClass)(void *self, UInt8 *intfClass);
```