---
title: HIDUsage.PhysicalInputDeviceUsage.negativeCoefficient
framework: corehid
role: symbol
role_heading: Case
path: corehid/hidusage/physicalinputdeviceusage/negativecoefficient
---

# HIDUsage.PhysicalInputDeviceUsage.negativeCoefficient

## Declaration

```swift
case negativeCoefficient
```