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

# kIOVideoFeatureControlClassIDBacklightCompensation

## Declaration

```occ
kIOVideoFeatureControlClassIDBacklightCompensation = 'bklt'
```

## Discussion

Discussion A IOVideoFeatureControl that controls the amount of backlight compensation to apply. A low number indicates the least amount of backlight compensation. The units for the control's absolute value are are undefined.