---
title: kIOVideoFeatureControlClassIDWhiteLevel
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1646200-anonymous/kiovideofeaturecontrolclassidwhitelevel
---

# kIOVideoFeatureControlClassIDWhiteLevel

## Declaration

```occ
kIOVideoFeatureControlClassIDWhiteLevel = 'whlv'
```

## Discussion

Discussion A IOVideoFeatureControl that controls the white level offset. The units for the control's absolute value are percentage (%).