Subject: Re: Heavy /dev/lpt use burdens system.
To: Lennart Augustsson <lennart@augustsson.net>
From: Andrew Gillham <gillhaa@ghost.whirlpool.com>
List: port-i386
Date: 09/10/1999 14:38:59
Lennart Augustsson writes:
>
> It seems that the printer driver causes an incredible number of interrupts
> per seconds, thousands of them. Probably as many as your machine can
> handle. You should try the interruptless driver, but what is really needed
> is for someone to fix the ltp driver, perhaps to use DMA.
>
>
> --
>
> -- Lennart
Hey Lennart,
Great work (ok *awesome work*) on the USB stuff and sound support!
I've been meaning to say that for a while now.. :) So my question
is, should I expect the 'ulpt' driver to work better than 'lpt' with
IEEE1284 printers & cables? Currently I have a NEC SuperScript 870
connected to my SOYO SY6BA+, and it works great under Windows 98, but
the lpt driver is flaky under NetBSD. Using the various minor
drivers (interruptless, no reset, etc) I can get something that more
or less works, _most_ of the time.
My hope is a USB lpt port my Just Work. If so, I plan on buying a USB
hub with 2 serial, 1 parallel port.
Thanks for any insight!
-Andrew
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