---
title: doLock
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iofwaddressspace/1388225-dolock
---

# doLock

## Declaration

```occ
virtual UInt32 doLock(UInt16 nodeID, IOFWSpeed & speed, FWAddress addr, UInt32 inlen, const UInt32 *newVal, UInt32 & outLen, UInt32 *oldVal, UInt32 extType, IOFWRequestRefCon refcon);
```