---
title: kIOUSBDescriptorTypeBOS
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 13.0+, macOS 10.15+]
path: iokit/tiousbdescriptortype/kiousbdescriptortypebos
---

# kIOUSBDescriptorTypeBOS

## Declaration

```occ
kIOUSBDescriptorTypeBOS = 15
```