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From: Vojtech Pavlik <vojtech@suse.cz>
To: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: linux-kernel@vger.kernel.org, Meelis Roos <mroos@linux.ee>
Subject: Re: Strange atkbd messages with missing keyboard
Date: Sat, 14 Feb 2004 10:59:00 +0100	[thread overview]
Message-ID: <20040214095900.GA323@ucw.cz> (raw)
In-Reply-To: <200402131746.15884.dtor_core@ameritech.net>

On Fri, Feb 13, 2004 at 05:46:15PM -0500, Dmitry Torokhov wrote:

> > > I wonder if changing timeout in atkbd_sendbyte to 400 or 500 ms will
> > > cure the problem.
> > 
> > It probably would, but it also would slow down the detection. I think we
> > can simply ignore bytes with the timeout flag set in the atkbd_interrupt
> > function when we're not expecting an ACK/NAK.
> > 
> 
> The problem with this approach is that if late NAK comes while we are
> actually waiting for result of some other command it will interfere and 
> can cause misdetection.

This only happens with timeout NAKs. And in that case, there is no
device to talk to - and thus nothing can be misdetected.

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR

      reply	other threads:[~2004-02-14  9:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-12 14:18 Strange atkbd messages with missing keyboard Meelis Roos
2004-02-12 14:46 ` Andries Brouwer
2004-02-12 21:36   ` Vojtech Pavlik
2004-02-13 13:12     ` Meelis Roos
2004-02-13 18:27       ` Dmitry Torokhov
2004-02-13 18:57         ` Vojtech Pavlik
2004-02-13 22:46           ` Dmitry Torokhov
2004-02-14  9:59             ` Vojtech Pavlik [this message]

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