---
title: verticalSyncConfig
framework: kernel
role: symbol
role_heading: Instance Property
path: kernel/iodetailedtiminginformationv2/1385877-verticalsyncconfig
---

# verticalSyncConfig

kIOSyncPositivePolarity for positive polarity vertical sync (0 for negative).

## Declaration

```occ
UInt32 verticalSyncConfig;
```