---
title: ctl_event_data
framework: Kernel
role: symbol
platforms: [macOS 10.13+]
path: kernel/ctl_event_data
---

# ctl_event_data

## Declaration

```occ
struct ctl_event_data {
    ...
};
```

## Discussion

Discussion This structure is used for KEV_CTL_SUBCLASS kernel events.

## Topics

### Fields

- [ctl_id](kernel/ctl_event_data/1809197-ctl_id.md)
- [ctl_unit](kernel/ctl_event_data/1809200-ctl_unit.md)