---
title: init
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioaudiolevelcontrol/1493466-init
---

# init

## Declaration

```occ
virtual bool init(SInt32 initialValue, SInt32 minValue, SInt32 maxValue, IOFixed minDB, IOFixed maxDB, UInt32 channelID, const char *channelName, UInt32 cntrlID, UInt32 subType, UInt32 usage, OSDictionary *properties);
```