## Storage Device Driver Reference

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

### IORB Control Blocks

All direct call command control blocks are defined in the IBM-supplied IORB .H and IORB.INC Include files. (See I/O Request Block - C Definitions.) The following sections, which describe the commands and their associated control blocks, are written from both C and assembler programmers' points of view, with references to the actual Include files and field names.