---
title: kUSBHostPortPropertyProtocolRevision4
framework: USBDriverKit
role: symbol
role_heading: Macro
platforms: [driverkit 19.0+]
path: usbdriverkit/kusbhostportpropertyprotocolrevision4
---

# kUSBHostPortPropertyProtocolRevision4

## Declaration

```occ
#define kUSBHostPortPropertyProtocolRevision4
```