From owner-freebsd-stable  Tue Jul 25  1:39:59 2000
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To: Graham Wheeler <gram@cequrux.com>
Cc: "Jordan K. Hubbard" <jkh@zippy.osd.bsdi.com>, stable@freebsd.org,
	yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: psmintr: out of sync (0080 != 0000). ARGH! 
In-reply-to: Your message of "Tue, 25 Jul 2000 09:27:26 +0200."
             <397D415E.64DD5CE0@cequrux.com> 
References: <25919.964459652@localhost>  <397D415E.64DD5CE0@cequrux.com> 
Date: Tue, 25 Jul 2000 17:46:31 +0900
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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>I'm also very willing to help. 
[...]
>The hacks that I made, which have made my mouse completely usable
>(that's not to say perfect, but I seem to have reduced the problem to
>only the transitions between the 3-byte and 4-byte states), perform
>extra sanity checks on the data and try to detect when these transitions
>occur. After a transition to the 4-byte state, my code drops the zero
>bytes that are being inserted; after a transition back to the three byte
>state, they stop dropping these.
>
>I sent Jordan my kludged driver; I'm not sure if I sent it to you, Kazu.
>Let me know if you want to look at it. It's ugly, but I was desperate to
>be able to use X and so the elegance wasn't an issue.

Yes, I have your patch.

>To solve the problem properly, one would have to figure out where these
>zero bytes come from and why they occur.

I have been thinking about why this is happening. But, I cannot 
think of any plausible reason so far...

I will contact you later, after I do some experiments tonight.

Kazu


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