From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: So, is there support for IDE devices that have no IRQ? Date: Thu, 25 Mar 2004 14:21:02 +1100 Sender: linux-ide-owner@vger.kernel.org Message-ID: <1080184862.1149.59.camel@gaston> References: <20040324232905.GA11286@buici.com> <200403250104.10142.bzolnier@elka.pw.edu.pl> <20040325014423.GA9860@buici.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from gate.crashing.org ([63.228.1.57]:21381 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S263150AbUCYDVf (ORCPT ); Wed, 24 Mar 2004 22:21:35 -0500 In-Reply-To: <20040325014423.GA9860@buici.com> List-Id: linux-ide@vger.kernel.org To: Marc Singer Cc: Bartlomiej Zolnierkiewicz , linux-ide@vger.kernel.org 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.