Xref: utzoo comp.unix.msdos:251 comp.unix.sysv386:3743
Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!uwvax!persoft!gorgon!dag
From: dag@gorgon.uucp (Daniel A. Glasser)
Newsgroups: comp.unix.msdos,comp.unix.sysv386
Subject: Re: VPIX compatability questions
Keywords: scanner, miscrosoft windowa
Message-ID: <1991Jan06.025229.18994@gorgon.uucp>
Date: 6 Jan 91 02:52:29 GMT
References: <1991Jan4.201448.14923@cbnewsm.att.com> <102@calcite.UUCP>
Organization: Perseus Reductions (Medusa Division)
Lines: 14

I'll let other people address the software questions, but I know (from
trying to figure out how to do it) that in order to use something like
a full page scanner (like the HP ScanJet Plus) which uses DMA you need
a driver that gets built into the Unix kernel which cooperates with the
DOS driver and/or program.  If the device just uses shared memory and/or
(if I remember properly) interrupts, there is a way to tell vpix and
the OS to let the DOS device drivers/programs access the hardware registers
and shared memory ranges.  It is in the manual but not that easy to
understand.

I hope this helps.  I also hope it is correct.
-- 
Daniel A. Glasser                       One of those things that goes
dag%gorgon@persoft.com                  "BUMP! (ouch!)" in the night.