---
title: bFunctionalitySupport
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.7+]
path: iokit/iousbdevicecapabilitysuperspeedusb/1425773-bfunctionalitysupport
---

# bFunctionalitySupport

## Declaration

```occ
uint8_t bFunctionalitySupport;
```