---
title: SET_READ_AHEAD
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsimultimediacommandsdevice/1576187-set_read_ahead
---

# SET_READ_AHEAD

## Declaration

```occ
virtual bool SET_READ_AHEAD(SCSITaskIdentifier request, SCSICmdField4Byte TRIGGER_LOGICAL_BLOCK_ADDRESS, SCSICmdField4Byte READ_AHEAD_LOGICAL_BLOCK_ADDRESS, SCSICmdField1Byte CONTROL);
```