---
title: bFunctionalitySupport
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 12.0+]
path: kernel/standardusb_superspeedusbdevicecapabilitydescriptor/3794146-bfunctionalitysupport
---

# bFunctionalitySupport

## Declaration

```occ
uint8_t bFunctionalitySupport;
```