---
title: GetIOUSBLibVersion
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbdeviceinterface942/2977162-getiousblibversion
---

# GetIOUSBLibVersion

## Declaration

```occ
IOReturn (*GetIOUSBLibVersion)(void *self, NumVersion *ioUSBLibVersion, NumVersion *usbFamilyVersion);
```