---
title: IOMediumType
framework: IOKit
role: symbol
role_heading: Type Alias
platforms: [Mac Catalyst 18.4+, macOS 10.0+]
path: iokit/iomediumtype
---

# IOMediumType

## Declaration

```occ
typedef UInt32 IOMediumType;
```

## Discussion

Discussion A 32-bit value divided into fields which describes a single medium type.