---
title: uio_addiov
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.4+]
path: kernel/1442182-uio_addiov
---

# uio_addiov

## Declaration

```occ
int uio_addiov(uio_t a_uio, user_addr_t a_baseaddr, user_size_t a_length);
```