---
title: deviceID
framework: corehid
role: symbol
role_heading: Instance Property
path: corehid/hiddeviceclient/devicereference-swift.struct/deviceid
---

# deviceID

The unique ID for the associated HID device.

## Declaration

```swift
let deviceID: UInt64
```

## Discussion

Discussion A HIDDeviceClient.DeviceReferencewith the same deviceID is an equivalent reference to the same device, and a deviceID for a device is equivalent across the system.