Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!usc!apple!portal!cup.portal.com!DeadHead From: DeadHead@cup.portal.com (Bruce M Ong) Newsgroups: comp.unix.i386 Subject: Re: open /dev/mem to control hardware devices Message-ID: <28699@cup.portal.com> Date: 7 Apr 90 21:28:48 GMT References: <28628@cup.portal.com> <292@van-bc.UUCP> Distribution: usa Organization: The Portal System (TM) Lines: 28 >> >> JFAX deals with the rest of the world through a 2K memory buffer >>whose offset address you can set. Instead of writing a device driver for it, >>I would like to know how one could just open /dev/mem to map to the 2K > >You're a little late :-) We've been doing it for over a year on SCO Xenix, >SCO Unix and ISC will be available shortly. > >There is one other company called PC Research that has had a similiar >product available for ISC since last summer. > I am getting the PC research package (hi rick!), but I am not sure if it will let me send a fax withou dialing a number, and receive a fax without having a ring first. (and these things are what I need to control the board) >The biggest advantage/disadvantage that the Hayes card has is that it does >rendering for you. But it doesn't do an exceptionally good job and it run's >slower (ie takes longer to send the fax) if it has to do the rendering. That brings up an interesting question: how much time does it take for JTFAX to send a text file of say 80 colums by 60 lines full text? >-- >Stuart.Lynne@wimsey.bc.ca ubc-cs!van-bc!sl 604-937-7532(voice) 604-939-4768(fa x >) ---- bruce