---
title: host_get_io_main
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 13.0+]
path: kernel/4013522-host_get_io_main
---

# host_get_io_main

## Declaration

```occ
kern_return_t host_get_io_main(host_t host, io_main_t *io_main);
```