---
title: asyncIOCompletionCallback
framework: kernel
role: symbol
role_heading: Type Method
path: kernel/iousbhostpipe/3294724-asynciocompletioncallback
---

# asyncIOCompletionCallback

## Declaration

```occ
static void asyncIOCompletionCallback(void *owner, void *parameter, IOReturn status, uint32_t bytesTransferred);
```