*BSD News Article 9989


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From: alm@netcom.com (Andrew Moore)
Subject: Re: The lpt device driver
Message-ID: <1993Jan17.041655.28748@netcom.com>
Organization: Netcom Online Communications Services (408-241-9760 login: guest)
References: <lynn.930115123513@fusion.physics.auburn.edu> <PC123.93Jan16170507@apus.cus.cam.ac.uk>
Date: Sun, 17 Jan 1993 04:16:55 GMT
Lines: 22

In article <PC123.93Jan16170507@apus.cus.cam.ac.uk> pc123@cus.cam.ac.uk (Pete Chown) writes:
>In article <lynn.930115123513@fusion.physics.auburn.edu> lynn@fusion.physics.auburn.edu (Owen Lynn) writes:
>
>   I have one quick question about installing the /dev/lp.
>   Does one need the source code in order to reconfigure the
>   kernel to create the /dev/lp?
>
>Not only do you need the source, but you will need to do a lot of
>hacking on it, if your chipset is anything like mine.  I found that I
>got about one character every couple of seconds, because my I/O card
>wasn't generating the interrupts the driver was expecting.  So I
>hacked the driver to just spin for a while sending characters when it

There is already a good interruptless driver by Wolfgang Stanglmeier
and Andy Valencia.  Adrian Hall has built a kernel with the driver
installed.  It should be available via anon ftp at: rachel.ibmpcug.co.uk.

Please try this driver if Eric Haug's lpt patches (or Terry's ?) from
agate don't work.  Let us (i.e., the net, or Nate Williams, the
buglist maintainer) know if there are problems, along with any relevant
information (like make of your i/o card...).  Thank you.
-Andrew Moore <alm@netcom.com>