---
title: kUSBInformationRootHubisBuiltIn
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/usbdeviceinformationbits/kusbinformationroothubisbuiltin
---

# kUSBInformationRootHubisBuiltIn

The USB root hub is built-in.

## Declaration

```occ
kUSBInformationRootHubisBuiltIn = 10
```

## Discussion

Discussion If this is a root hub simulation and it’s built in to the enclosure, this bit is set. If it’s on an expansion card, this bit is clear.