---
title: IOUSBHostInterfacePropertyKey
framework: iousbhost
role: symbol
role_heading: Structure
path: iousbhost/iousbhostinterfacepropertykey
---

# IOUSBHostInterfacePropertyKey

Properties of a USB interface that describe its state.

## Declaration

```swift
struct IOUSBHostInterfacePropertyKey
```

## Topics

### Properties

- [alternateSetting](iousbhost/iousbhostinterfacepropertykey/alternatesetting.md)

### Initializing the Structure

- [init(rawValue:)](iousbhost/iousbhostinterfacepropertykey/init(rawvalue:).md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### IOServicePlane Properties

- [IOUSBHostDevicePropertyKey](iousbhost/iousbhostdevicepropertykey.md)
- [IOUSBHostMatchingPropertyKey](iousbhost/iousbhostmatchingpropertykey.md)
- [IOUSBHostPropertyKey](iousbhost/iousbhostpropertykey.md)