---
title: GetBusFrameNumber
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbinterfaceinterface942/2977202-getbusframenumber
---

# GetBusFrameNumber

## Declaration

```occ
IOReturn (*GetBusFrameNumber)(void *self, UInt64 *frame, AbsoluteTime *atTime);
```