---
title: ex_cb_register
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 11.0+]
path: kernel/3609183-ex_cb_register
---

# ex_cb_register

## Declaration

```occ
kern_return_t ex_cb_register(ex_cb_class_t cb_class, ex_cb_t cb, void *refcon);
```