From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Marc Singer <elf@buici.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
linux-ide@vger.kernel.org
Subject: Re: So, is there support for IDE devices that have no IRQ?
Date: Thu, 25 Mar 2004 14:21:02 +1100 [thread overview]
Message-ID: <1080184862.1149.59.camel@gaston> (raw)
In-Reply-To: <20040325014423.GA9860@buici.com>
On Thu, 2004-03-25 at 12:44, Marc Singer wrote:
> On Thu, Mar 25, 2004 at 01:04:10AM +0100, Bartlomiej Zolnierkiewicz wrote:
> >
> > Probing code uses polling but actual NODATA/PIO/DMA handlers require IRQ
> > so it needs much effort to make it work.
>
> Well, I'm thinking that I can emulate the irq by using a timer. A bad
> hack, but it ought to work as long as I can get the timing correct.
> This is for a compact flash interface.
Well, before doing such a big pile of shit, you should think seriously
about making the HW person (provided it's not you) regret deeply his
mistake :) Seriously, not wiring the IRQ line is _DUMB_ at best
Ben.
prev parent reply other threads:[~2004-03-25 3:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-24 23:29 So, is there support for IDE devices that have no IRQ? Marc Singer
2004-03-25 0:04 ` Bartlomiej Zolnierkiewicz
2004-03-25 1:44 ` Marc Singer
2004-03-25 2:23 ` Bartlomiej Zolnierkiewicz
2004-03-25 2:25 ` Marc Singer
2004-03-25 3:21 ` Benjamin Herrenschmidt [this message]
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