---
title: length
framework: driverkit
role: symbol
role_heading: Instance Property
path: driverkit/ioaddresssegment/length
---

# length

The size of the memory buffer, in bytes.

## Declaration

```occ
uint64_t length;
```

## See Also

### Getting the Address Information

- [address](driverkit/ioaddresssegment/address.md)