Path: utzoo!attcan!uunet!convex!texsun!newstop!sun-barr!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!dali.cs.montana.edu!milton!akbar.cac.washington.edu!brad
From: brad@akbar.cac.washington.edu (Brad Greer)
Newsgroups: comp.unix.i386
Subject: Interactive HPDD (Device Drivers)
Message-ID: <5005@milton.u.washington.edu>
Date: 12 Jul 90 20:43:09 GMT
Sender: news@milton.u.washington.edu
Reply-To: brad@akbar.cac.washington.edu (Brad Greer)
Organization: University of Washington
Lines: 24

I've recently taken a plunge into i386 and decided to do some device driver
development.  This driver will be for a device on the SCSI bus.  It appears
that Interactive uses their own whiz-bang HPDD, a SCSI controller driver, and
a third device driver (the one I want to write) to talk to a given SCSI device.

I searched the documentation and couldn't find any info on how to
interface to the routines that are already there (HPDD and aha1540). 
The description of the HPDD sounds great (using it would minimize my
work) -- but, where's the docs??

The Integrated Software Development Guide refers to a "Unix System V/386
Release
3 Block and Character Interface Device Driver Reference Manual", but I'm not
sure this would help since the HPDD is added by ISC.  And besides, AT&T wanted
$100 dollars for this book, and $200 its companion Development Guide !!!


****************************************************************************
Brad Greer                     
Micro Support Group       
University of Washington       INTERNET: brad@cac.washington.edu      
One Parrington Hall DC-11        
Seattle, WA  98195             TELEPHONE: (206) 685-3311  
****************************************************************************