---
title: kUSBInformationDeviceIsAttachedToRootHubMask
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/usbdeviceinformationbits/kusbinformationdeviceisattachedtoroothubmask
---

# kUSBInformationDeviceIsAttachedToRootHubMask

The mask indicating that the USB device has attached to a root hub.

## Declaration

```occ
kUSBInformationDeviceIsAttachedToRootHubMask = (1 << kUSBInformationDeviceIsAttachedToRootHubBit)
```