---
title: USBDeviceOpen
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbdeviceinterface942/2977176-usbdeviceopen
---

# USBDeviceOpen

## Declaration

```occ
IOReturn (*USBDeviceOpen)(void *self);
```