---
title: doWriteSpace
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iofirewirecontroller/1457306-dowritespace
---

# doWriteSpace

## Declaration

```occ
virtual UInt32 doWriteSpace(UInt16 nodeID, IOFWSpeed & speed, FWAddress addr, UInt32 len, const void *buf, IOFWRequestRefCon refcon);
```