---
title: kUSBDiagnosticClass
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 18.4+, macOS 10.3+]
path: iokit/1424988-device_class_codes/kusbdiagnosticclass
---

# kUSBDiagnosticClass

## Declaration

```occ
kUSBDiagnosticClass = 220
```