---
title: IssueWrite
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsiblockcommandsdevice/3516746-issuewrite
---

# IssueWrite

## Declaration

```occ
virtual IOReturn IssueWrite(IOMemoryDescriptor *buffer, UInt64 startBlock, UInt64 blockCount, void *clientData);
```