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# AAUSBAccessoryMatchingCriteria.InterfaceMatchingCriteria

A structure you provide that enumerates which device interface characteristics to search for.

```
struct InterfaceMatchingCriteria
```

## Topics

### Creating an interface characteristics structure

[`init(vendorID:productID:bcdDevice:interfaceNumber:configurationValue:interfaceClass:interfaceSubClass:interfaceProtocol:speed:)`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/init(vendorID:productID:bcdDevice:interfaceNumber:configurationValue:interfaceClass:interfaceSubClass:interfaceProtocol:speed:))

Initializes a new matching criteria structure with the provided values.

### Interface characteristics

[`bcdDevice`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/bcdDevice)

The 2-byte Binary-Coded Decimal (BCD) value defined by the manufacturer to indicate the device revision or version number.

[`configurationValue`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/configurationValue)

The value that represents the configuration.

[`interfaceClass`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/interfaceClass)

The value that represents the interface class.

[`interfaceNumber`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/interfaceNumber)

The value that represents the interface number.

[`interfaceProtocol`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/interfaceProtocol)

The value that represents the interface protocol.

[`interfaceSubClass`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/interfaceSubClass)

The value that represents the interface subclass.

[`productID`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/productID)

The value that represents the product ID.

[`speed`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/speed)

The value that represents the interface speed.

[`vendorID`](/documentation/AccessoryAccess/AAUSBAccessoryMatchingCriteria/InterfaceMatchingCriteria/vendorID)

The value that represents the vendor ID.


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