---
title: HIDUsage.EyeAndHeadTrackersUsage.samplingFrequency
framework: corehid
role: symbol
role_heading: Case
path: corehid/hidusage/eyeandheadtrackersusage/samplingfrequency
---

# HIDUsage.EyeAndHeadTrackersUsage.samplingFrequency

## Declaration

```swift
case samplingFrequency
```