From: Vojtech Pavlik <vojtech@suse.cz>
To: Martin Dalecki <dalecki@evision-ventures.com>
Cc: Vojtech Pavlik <vojtech@suse.cz>, Oleg Drokin <green@namesys.com>,
"Gryaznova E." <grev@namesys.botik.ru>,
martin@dalecki.de, Linux Kernel <linux-kernel@vger.kernel.org>,
Reiserfs developers mail-list <Reiserfs-Dev@namesys.com>
Subject: Re: [reiserfs-dev] Re: IDE problem: linux-2.5.17
Date: Fri, 24 May 2002 15:15:36 +0200 [thread overview]
Message-ID: <20020524151536.C636@ucw.cz> (raw)
In-Reply-To: <3CECF59B.D471F505@namesys.botik.ru> <3CECFC5B.3030701@evision-ventures.com> <20020523193959.A2613@namesys.com> <3CED004A.6000109@evision-ventures.com> <20020524005057.F27005@ucw.cz> <3CEE1DFE.4080500@evision-ventures.com>
On Fri, May 24, 2002 at 01:03:26PM +0200, Martin Dalecki wrote:
> Użytkownik Vojtech Pavlik napisał:
>
> >
> >>Hmm thinking again about it... It occurrs to me
> >>that actually there should be a mechanism which tells the
> >>host chip drivers whatever there are only just one or
> >>two drivers connected. I will have to look in to it.
> >
> >
> > There is no such mechanism (except for probing the drives). IDE has
> > quite nonsensical "split" termination - the termination resistors are
> > always present even on the middle device. This is to "simplify" things
> > ...
> >
>
> Yes there is the host chip timer setting is basically
> changing the termination properties on the hsot chips part
> of the connection. This is the reason I was thinking
> that making the driver for it know how many drivers
> are attached to it could make some sense.
Hmm, interesting. Is it on all chips or just some? I don't know about
anything like that on Intel, VIA, nVidia, AMD, SiS and Artop controllers ...
--
Vojtech Pavlik
SuSE Labs
next prev parent reply other threads:[~2002-05-24 13:15 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-23 13:58 IDE problem: linux-2.5.17 Gryaznova E.
2002-05-23 14:17 ` Martin Dalecki
2002-05-23 17:48 ` Gryaznova E.
2002-05-23 18:03 ` Tomas Szepe
2002-05-23 18:44 ` Andre Hedrick
2002-05-23 17:49 ` Martin Dalecki
2002-05-23 19:11 ` Andre Hedrick
2002-05-23 19:13 ` Andre Hedrick
2002-05-24 15:05 ` Alan Cox
2002-05-23 22:40 ` Vojtech Pavlik
2002-05-23 18:07 ` Martin Dalecki
2002-05-23 22:42 ` Vojtech Pavlik
2002-05-23 22:37 ` Vojtech Pavlik
2002-05-23 14:27 ` Martin Dalecki
2002-05-23 15:39 ` [reiserfs-dev] " Oleg Drokin
2002-05-23 14:44 ` Martin Dalecki
2002-05-23 16:00 ` Oleg Drokin
2002-05-23 22:52 ` Vojtech Pavlik
2002-05-23 21:47 ` Lionel Bouton
2002-05-23 22:55 ` Vojtech Pavlik
2002-05-24 0:23 ` Lionel Bouton
2002-05-24 1:04 ` Andre Hedrick
2002-05-24 5:56 ` Vojtech Pavlik
2002-05-24 8:53 ` Lionel Bouton
2002-05-24 4:53 ` Oleg Drokin
2002-05-23 22:50 ` Vojtech Pavlik
2002-05-24 11:03 ` Martin Dalecki
2002-05-24 13:15 ` Vojtech Pavlik [this message]
2002-05-24 12:15 ` Martin Dalecki
2002-05-24 13:20 ` Vojtech Pavlik
2002-05-24 13:40 ` Martin Dalecki
2002-05-24 14:54 ` Vojtech Pavlik
2002-05-23 15:52 ` Tomas Szepe
2002-05-23 16:02 ` Oleg Drokin
2002-05-23 22:45 ` Vojtech Pavlik
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