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  "framework" : "AudioAccessoryKit",
  "identifier" : "/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct",
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  "title" : "AccessoryControlDevice.Configuration"
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# AccessoryControlDevice.Configuration

The configuration for an accessory.

```
struct Configuration
```

## Overview

Use this structure to define the characteristics and capabilities of your audio accessory.

## Topics

### Creating a configuration

[`init(devicePlacement: AccessoryControlDevice.Placement?, deviceCapabilities: AccessoryControlDevice.Capabilities, primaryAudioSourceDeviceIdentifier: Data?, secondaryAudioSourceDeviceIdentifier: Data?)`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/init(devicePlacement:deviceCapabilities:primaryAudioSourceDeviceIdentifier:secondaryAudioSourceDeviceIdentifier:))

Creates an audio accessory configuration.

### Accessing configuration options

[`var deviceCapabilities: AccessoryControlDevice.Capabilities`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/deviceCapabilities)

The capabilities the accessory supports.

[`var devicePlacement: AccessoryControlDevice.Placement?`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/devicePlacement)

The physical position of the accessory.

[`var primaryAudioSourceDeviceIdentifier: Data?`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/primaryAudioSourceDeviceIdentifier)

The Bluetooth address of the device
providing the primary source of audio.

[`var secondaryAudioSourceDeviceIdentifier: Data?`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/secondaryAudioSourceDeviceIdentifier)

The Bluetooth address of the device
providing the secondary source of audio.

### Initializers

[`init(devicePlacement: AccessoryControlDevice.Placement?, deviceCapabilities: AccessoryControlDevice.Capabilities, primaryAudioSourceDeviceIdentifier: Data?, secondaryAudioSourceDeviceIdentifier: Data?, spatialExtensionDescription: AudioComponentDescription?)`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/init(devicePlacement:deviceCapabilities:primaryAudioSourceDeviceIdentifier:secondaryAudioSourceDeviceIdentifier:spatialExtensionDescription:))

Creates a new device configuration with spatial audio support.

### Instance Properties

[`var spatialExtensionDescription: AudioComponentDescription?`](/documentation/AudioAccessoryKit/AccessoryControlDevice/Configuration-swift.struct/spatialExtensionDescription)

The spatial audio component description.

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

---

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