---
title: ctl_id
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.13+]
path: kernel/ctl_info/1809204-ctl_id
---

# ctl_id

The kernel control id, filled out upon return.

## Declaration

```occ
u_int32_t ctl_id;
```

## See Also

### Fields

- [ctl_name](kernel/ctl_info/1809207-ctl_name.md)