---
title: IOFireWireAVCSubUnit
framework: kernel
role: symbol
role_heading: Class
path: kernel/iofirewireavcsubunit
---

# IOFireWireAVCSubUnit

nub for sub unit of AVC devices. Just for matching, calls the AVC unit for all functions.

## Declaration

```occ
class IOFireWireAVCSubUnit : IOFireWireAVCNub
```

## Overview

Overview

## Topics

### Miscellaneous

- [AVCCommand](kernel/iofirewireavcsubunit/1810566-avccommand.md)
- [AVCCommandInGeneration](kernel/iofirewireavcsubunit/1810598-avccommandingeneration.md)
- [handleClose](kernel/iofirewireavcsubunit/1810634-handleclose.md)
- [handleOpen](kernel/iofirewireavcsubunit/1810680-handleopen.md)
- [matchPropertyTable](kernel/iofirewireavcsubunit/1810716-matchpropertytable.md)
- [updateAVCCommandTimeout](kernel/iofirewireavcsubunit/1810751-updateavccommandtimeout.md)

### DataTypes

- [ExpansionData](kernel/ioservice/expansiondata.md)

### Instance Variables

- [reserved](kernel/iofirewireavcsubunit/reserved.md)

### Instance Methods

- [AVCCommand](kernel/iofirewireavcsubunit/1553143-avccommand.md)
- [AVCCommandInGeneration](kernel/iofirewireavcsubunit/1553109-avccommandingeneration.md)
- [getMetaClass](kernel/iofirewireavcsubunit/1553104-getmetaclass.md)
- [handleClose](kernel/iofirewireavcsubunit/1553122-handleclose.md)
- [handleOpen](kernel/iofirewireavcsubunit/1553112-handleopen.md)
- [init](kernel/iofirewireavcsubunit/1553123-init.md)
- [matchPropertyTable](kernel/iofirewireavcsubunit/1553136-matchpropertytable.md)
- [message](kernel/iofirewireavcsubunit/1553116-message.md)
- [updateAVCCommandTimeout](kernel/iofirewireavcsubunit/1553142-updateavccommandtimeout.md)

## Relationships

### Inherits From

- [IOFireWireAVCNub](kernel/iofirewireavcnub.md)

## See Also

### Nubs

- [IOFireWireLocalNode](kernel/iofirewirelocalnode.md)
- [IOFireWireSBP2LUN](kernel/iofirewiresbp2lun.md)
- [IOFireWireAVCUnit](kernel/iofirewireavcunit.md)
- [IOFireWireAVCNub](kernel/iofirewireavcnub.md)
- [IOFireWireUnit](kernel/iofirewireunit.md)
- [IOFireWireNub](kernel/iofirewirenub.md)