---
title: ReportMaxWriteTransfer
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsireducedblockcommandsdevice/1473404-reportmaxwritetransfer
---

# ReportMaxWriteTransfer

## Declaration

```occ
virtual IOReturn ReportMaxWriteTransfer(UInt64 blockSize, UInt64 *max);
```