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Received: by minnie.vk1xwt.ampr.org with NNTP
id AA5505 ; Fri, 01 Jan 93 01:47:30 EST
Newsgroups: comp.unix.bsd
Path: sserve!manuel.anu.edu.au!munnari.oz.au!sgiblab!sdd.hp.com!caen!uunet!psinntp!dg-rtp!ponds.uucp!rivers
From: rivers@ponds.uucp (Thomas David Rivers)
Subject: Re: New kernel on rachel.ibmpcug.co.uk
References: <Bzo9qv.7Gs@ibmpcug.co.uk> <BzoI6z.8uJ@ibmpcug.co.uk>
Message-ID: <1992Dec23.034326.1570@ponds.uucp>
Date: Wed, 23 Dec 1992 03:43:26 GMT
Lines: 278
Well, enough requests, etc... have been posted recently to warrant
(at least in my opinion) a repost of this driver.
I have been successfully using it for some time now with my
HP Laserjet clone (an Epson Action Laser II). I've had no lost
char's etc... - it works well with graphics (ghostscript output
and HP stuff from Windows) and text.
Also, it doesn't seem to put any unreasonable load on my system.
I don't know anything about the internals, except that installation
wasn't straightforward (you have to muck around in config.c yourself.)
If you have any questions, I suggest contacting the original author(s)
(see below.)
Finally, we need to provide a *fixed* major # for the printer - I'm
getting tired of moving it around for every new driver that comes up...
Currently mine is set to 16.
- Dave Rivers -
(rivers@ponds.uucp)
------------- cut here ----------------------------
>From: wolf@dentaro.GUN.de (Wolfgang Stanglmeier)
Newsgroups: comp.unix.bsd
Subject: replacement for lpt.c without interrupts
Date: 6 Sep 92 14:37:03 GMT
Organization: Colognists, Germany
I hacked the 386bsd LPT-driver to work without interrupts.
The busy loop timeout value adapts automatically to
the printer and system speed.
It should be a full replacement for the standard driver.
This driver keeps my printer busy without slowing down the system.
[I remember the 90% system time when printing hppcl graphic files
with the ix/386 lpt-driver WITH interrupts]
The driver supports up to 4 printers.
The minor number is interpreted as follows:
D D P E - - # #
DD: Debug, 00: no
01: statistical data when closing device
10: statistical data for every write call
11: lots of silly data
P: Prime on open.
E: Errormessage.
Logs "no paper", "offline", "printer error" conditions
to the console.
##: Device, 0: lpt0
1: lpt1
2: lpt2 (on display adapter)
This driver uses the ideas of Piercarlo Grandis polling printer driver.
----------------------------------------------------------------------
>From: ajv@xhost92.csd.mot.com
Newsgroups: comp.unix.bsd
Subject: Re: replacement for lpt.c without interrupts
Date: 9 Sep 92 06:00:18 GMT
wolf@dentaro.GUN.de (Wolfgang Stanglmeier) writes:
>I hacked the 386bsd LPT-driver to work without interrupts.
>The busy loop timeout value adapts automatically to
>the printer and system speed.
<excellent driver follows...>
I was working on something very much along the same lines. However,
Mr. Stanglmeier hit the nail right on the head first. I have rolled
in some of my other work on handling syscall restarts, and in the
process applied my BSD-kernel style of indentation. What follows is
substantially the same driver, with my own minor improvements.
Kudos, Mr. Stanglmeier! My printer thanks you. :-)
Andy Valencia
ajv@csd.mot.com (for now)
jtk@netcom.com (if it bounces)
-----------------------------------------------------------------------
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end
--
+------------------------+---------------------------+
| Gary Ward | Amdahl Corporation |
| gpw10@cd.amdahl.com | 1250 East Arques Avenue |
| Phone : (408)746-8865 | P.O. Box 3470 M/S 142 |
| | Sunnyvale, CA 94088-3470 |
+------------------------+---------------------------+
>From mozart.unx.sas.com!sas!concert!gatech!darwin.sura.net!Sirius.dfn.de!news.uni-stuttgart.de!news.uni-stuttgart.de!nils Wed Oct 7 09:39:25 EDT 1992
Article: 6775 of comp.unix.bsd
Newsgroups: comp.unix.bsd
Path: mozart.unx.sas.com!sas!concert!gatech!darwin.sura.net!Sirius.dfn.de!news.uni-stuttgart.de!news.uni-stuttgart.de!nils
>From: nils@merlin.ims.uni-stuttgart.de (Cornelis van der Laan)
Subject: Re: How to get parallel printer to work ?
In-Reply-To: gpw10@phoenixcd.amdahl.com's message of 1 Oct 92 18:08:12 GMT
Message-ID: <NILS.92Oct3183527@merlin.ims.uni-stuttgart.de>
Lines: 32
Sender: news@news.uni-stuttgart.de (USENET News System)
Reply-To: nils@ims.uni-stuttgart.de
Organization: IMS, University of Stuttgart, Germany
References: <BvEp92.91@news.cso.uiuc.edu> <66YV02cj24MG01@JUTS.ccc.amdahl.com>
Date: Sat, 3 Oct 1992 17:27:02 GMT
Lines: 32
>>>>> On 1 Oct 92 18:08:12 GMT, gpw10@phoenixcd.amdahl.com (Gary Ward) said:
Gary> I also have a HP DeskJet 500. This printer expects <CR><LF> at the
Gary> end of each line. I provided a simple output filter to add the needed
Gary> <CR> characters and it would then print text fine. Unfortunately
Gary> doing this screws up graphics printing. I therefore invented another
Gary> logical printer which does not filter and dump all my graphics to it.
There's no problem if you set the Deskjet into the mode where it
automagically expands <LF> to <LF><CR>. Do this with the following
printcap:
#
# Setup for HP Deskjet 500:
#
# tr= Eject page at end of all jobs
# mx= Maximum size of job (0 = no limit)
# sh= no header page
# fo= send 'form-feed' when opening device
# ff= the 'form feed': Reset printer, CR=>CR, LF=CR+LF, FF=CR+FF
# tr= (eject page at end of printing ?)
#
jet|rjet|lp|"Deskjet 500":\
:lp=/dev/lp1:\
:sd=/usr/spool/lpd/jet:lf=/usr/adm/lpd.errs:af=/usr/adm/lpr-prints:\
:mx#0:tr=\033&l0H:fo:ff=\033E\033&k2G:sh:
As graphics data contain a reset sequence you can just print all your
files without fiddling with strange in/outfilters.
--Nils.