---
title: IOPhysicalLength32
framework: driverkit
role: symbol
role_heading: Type Alias
path: driverkit/iophysicallength32
---

# IOPhysicalLength32

A type that represents the length of a memory block in a 32-bit address space.

## Declaration

```occ
typedef uint32_t IOPhysicalLength32;
```

## See Also

### Addresses

- [IOVirtualAddress](driverkit/iovirtualaddress.md)
- [IOPhysicalAddress](driverkit/iophysicaladdress.md)
- [IOPhysicalAddress32](driverkit/iophysicaladdress32.md)
- [IOPhysicalAddress64](driverkit/iophysicaladdress64.md)
- [IOPhysicalLength](driverkit/iophysicallength.md)
- [IOPhysicalLength64](driverkit/iophysicallength64.md)
- [IOCacheMode](driverkit/iocachemode.md)