---
title: addr
framework: Hypervisor
role: symbol
role_heading: Instance Property
path: hypervisor/hv_ion_message_t/addr
---

# addr

The address of the I/O write.

## Declaration

```swift
var addr: UInt64
```

## See Also

### Instance properties

- [header](hypervisor/hv_ion_message_t/header.md)
- [size](hypervisor/hv_ion_message_t/size.md)
- [trailer](hypervisor/hv_ion_message_t/trailer.md)
- [value](hypervisor/hv_ion_message_t/value.md)