OSDI SCSI driver interface version for SCO OpenServer

The OSDI driver version is a pseudo-versioning scheme used to document the SCO OpenServer SCSI driver interface. See ``ODDI driver interface version for SCO OpenServer'' for more information about SCO OpenServer driver interfaces.

OSDI version support

O/S release	Supported versions
Pre-3.2v4	osdi: 1
UNIX 3.2v4 and ODT 3	osdi: 1,2
SCO OpenServer Release 5	osdi: 1,2,3
SCO OpenServer Release 5.0.4	osdi: 1,2,3,4
SCO OpenServer Release 5.0.5	osdi: 1,2,3,4,5

 O/S release                 |  Supported versions
 Pre-3.2v4                   |  osdi: 1
 UNIX 3.2v4 and ODT 3        |  osdi: 1,2
 SCO OpenServer Release 5    |  osdi: 1,2,3
 SCO OpenServer Release 5.0.4|  osdi: 1,2,3,4
 SCO OpenServer Release 5.0.5|  osdi: 1,2,3,4,5

The SDDI interface is documented in the following manual page sections:

• Section D2osdi manual pages -- Driver entry point routines

• Section D3osdi manual pages -- Kernel functions

• Section D4osdi manual pages -- Kernel structures

Differences between versions

The following list summarizes the differences between OSDI versions:

OSDI 3 (SCO OpenServer Release 5)

• Added support for peripheral and host adapter drivers with multithreaded interrupt and callback handling.

OSDI 4 (SCO OpenServer Release 5.0.4)

• Modification to the Sdsk peripheral driver to enable it to do its own read cap cmd. See scsi_io_req(D4osdi) for details.

OSDI 5 (SCO OpenServer Release 5.0.5)