---
title: GetInterfaceAsyncEventSource
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbinterfaceinterface942/2977215-getinterfaceasynceventsource
---

# GetInterfaceAsyncEventSource

## Declaration

```occ
CFRunLoopSourceRef (*GetInterfaceAsyncEventSource)(void *self);
```