---
title: init
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iomedia/1420306-init
---

# init

## Declaration

```occ
virtual bool init(UInt64 base, UInt64 size, UInt64 preferredBlockSize, IOMediaAttributeMask attributes, bool isWhole, bool isWritable, const char *contentHint, OSDictionary *properties);
```