## Storage Device Driver Reference

[prev][next][parent][TOC]

### IORB Status Block

The IORB Status Block allows an .ADD driver to provide additional information describing an error condition reported in the IORB ErrorCode field.

Currently, only ADD drivers controlling SCSI devices are required to return a StatusBlock when requested to do so. When an ADD driver does return a StatusBlock, it must set the IORB_REQ_STATUSBLOCK bit in the RequestControl flags to indicate that the StatusBlock has been updated.