*BSD News Article 4873


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From: ajv@xhost92.csd.mot.com
Newsgroups: comp.unix.bsd
Subject: Re: /dev/lp and LARGEW configurations
Message-ID: <7086@motcsd.csd.mot.com>
Date: 11 Sep 92 17:15:29 GMT
References: <5717@blue.cis.pitt.edu.UUCP>
Sender: usenet@motcsd.csd.mot.com
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dri@gl.pitt.edu (Paul) writes:

>More exactly the printer starts to spit out a ROOT banner page and then
>the system softreboots.

I saw this too with the original printer driver.  I think you need
to have a parallel interface which streams interrupt to your system
at a rate unrelated to any parallel activity.  That you're seeing this
also suggests that the original printer driver wouldn't work very
well for you, anyway.

Mr. Stanglmeier came up with a lpt driver which doesn't need interrupts.
I tweaked it a little bit more.  It handles my printer fine, and
also appears to use LESS(!) CPU than the interrupt-driven configuration.
Anybody who missed the posting with this driver can E-mail me and I'll
be happy to send you a copy.

					Regards,
					Andy Valencia
					ajv@csd.mot.com