From: Vojtech Pavlik <vojtech@suse.cz>
To: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: Vojtech Pavlik <vojtech@suze.cz>,
torvalds@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 24/44] Workaround i8042 chips with broken MUX mode
Date: Thu, 18 Mar 2004 21:37:17 +0100 [thread overview]
Message-ID: <20040318203717.GA4430@ucw.cz> (raw)
In-Reply-To: <20040316182409.54329.qmail@web80508.mail.yahoo.com>
On Tue, Mar 16, 2004 at 10:24:09AM -0800, Dmitry Torokhov wrote:
> Vojtech Pavlik wrote:
> > +
> > + /* Workaround for broken chips which seem to
> support MUX, but in reality don't. */
> > + /* They all report version 12.10 */
> > + if (mux_version == 0xCA)
> > + return -1;
>
> Hi,
>
> I think it should be 0xAC (0xA4 with 4th bit flipped)
> as the version reported is 10.12:
>
> i8042.c: Detected active multiplexing controller, rev
> 10.12.
>
> From little debug info that I've been sent ThinkPad's
> controllers seem to be flipping 4th bit sometimes, I
> can't quite pinpoint the exact sequence.
Could this be the bit that indicates whether the report is coming from
an internal or external device?
--
Vojtech Pavlik
SuSE Labs, SuSE CR
next prev parent reply other threads:[~2004-03-18 20:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-16 18:24 [PATCH 24/44] Workaround i8042 chips with broken MUX mode Dmitry Torokhov
2004-03-18 20:37 ` Vojtech Pavlik [this message]
[not found] ` <200403190005.36956.dtor_core@ameritech.net>
2004-03-19 13:58 ` Vojtech Pavlik
2004-03-19 14:21 ` Stefan Smietanowski
2004-03-19 14:30 ` Vojtech Pavlik
2004-03-19 13:56 ` Vojtech Pavlik
2004-03-28 0:29 ` Andries Brouwer
2004-03-28 0:40 ` Dmitry Torokhov
2004-03-28 1:25 ` Andries Brouwer
2004-03-28 3:11 ` Dmitry Torokhov
2004-03-28 7:45 ` Stefan Smietanowski
-- strict thread matches above, loose matches on Subject: below --
2004-03-16 14:19 [PATCH 23/44] Use __obsolete_setup() in input drivers to warn about obsolete kernel params Vojtech Pavlik
2004-03-16 14:19 ` [PATCH 24/44] Workaround i8042 chips with broken MUX mode Vojtech Pavlik
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