From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Tim Josling <tej@melbpc.org.au>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
Philip.Blundell@pobox.com, linux-parport@torque.net
Subject: Re: [PATCH] to drivers/parport/ieee1284_ops.c to fix timing dependent hang
Date: 22 Mar 2003 09:44:55 -0800 [thread overview]
Message-ID: <1048355094.8537.11.camel@ixodes.goop.org> (raw)
In-Reply-To: <3E7C2BA0.4040100@melbpc.org.au>
On Sat, 2003-03-22 at 01:23, Tim Josling wrote:
> According to my reading of the code, it should only happen in polled
> mode, but I have only one week of experience looking at kernel source.
I'm wondering if a better fix might be to have something like:
if (wait * 2 > wait)
wait *= 2;
at the bottom of the loop, so that the wrap-around doesn't happen.
> So it should be a work-around, assuming interrupts work on the parallel
> port on your system :-). It is an very vexing problem, as I'm sure you know.
>
> By the way, LJ1100s tend to get page feeding problems about the time the
> warranty runs out, but HP has a free kit you can order to fix the problem.
Yes, I just installed it. It suddenly made the printer useful again, so
I've printing more, and seeing the hangs. I enabled interrupts, which
seems to work OK.
J
next prev parent reply other threads:[~2003-03-22 17:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-19 8:08 [PATCH] to drivers/parport/ieee1284_ops.c to fix timing dependend Tim Josling
2003-03-21 20:22 ` Jeremy Fitzhardinge
2003-03-22 9:23 ` [PATCH] to drivers/parport/ieee1284_ops.c to fix timing dependent hang Tim Josling
2003-03-22 17:44 ` Jeremy Fitzhardinge [this message]
2003-03-22 20:31 ` Tim Josling
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