---
title: bDescriptorType
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.7+]
path: iokit/iousbdevicecapabilitydescriptorheader/1425640-bdescriptortype
---

# bDescriptorType

## Declaration

```occ
uint8_t bDescriptorType;
```