---
title: refCon2
framework: kernel
role: pseudoSymbol
path: kernel/ioatacommand/refcon2
---

# refCon2

for use by disk drivers, clients of IOATADevice only. IOATADevice and IOATAControllers shall not use this field in any manner.

## Declaration

```occ
void* refCon2;
```

## Overview

Overview

## See Also

### Instance Variables

- [refCon](kernel/ioatacommand/refcon.md)
- [fExpansionData](kernel/ioatacommand/fexpansiondata.md)