---
title: IOServiceInterestContent64
framework: IOKit
role: symbol
role_heading: Structure
platforms: [iOS 18.4+, iPadOS 18.4+, Mac Catalyst 13.0+, macOS 10.6+, visionOS 2.4+]
path: iokit/ioserviceinterestcontent64
---

# IOServiceInterestContent64

## Declaration

```swift
struct IOServiceInterestContent64
```

## Topics

### Instance Properties

- [messageArgument](iokit/ioserviceinterestcontent64/1455540-messageargument.md)
- [messageType](iokit/ioserviceinterestcontent64/1455516-messagetype.md)

### Initializers

- [init()](iokit/ioserviceinterestcontent64/1514849-init.md)
- [init(messageType:messageArgument:)](iokit/ioserviceinterestcontent64/1514569-init.md)