From: Kirill A. Korinsky <kirill@korins.ky>
Subject: Re: sys/ihidev: replace HONOR's touchpad quirk
To: Marcus Glocker <marcus@nazgul.ch>
Cc: tech@openbsd.org
Date: Tue, 26 May 2026 22:20:15 +0200

On Tue, 26 May 2026 21:21:52 +0200,
Marcus Glocker <marcus@nazgul.ch> wrote:
> 
> In your initial e-mail you are saying 2-3 repeated reads are OK.
> Now you only implement another additional single read.  Are you sure
> this is enough?  Wouldn't a capped retry loop be better?  Like 3-5
> read attempts before finally failing?
> 

It was poor wording, I mean that on 2-3 reads I actually read the report and
it works. After series of additional test to challenge 100ms sleep I
reallized that I never saw that I beed 2rd read. Second time is enough.

Somewhere here I had simplified it to current version: ignore first read,
take the second and use it.

For last few days I uses it, and that laptop has a lot of reboots (thanks
qwz debuing) and I use multitouch to scroll in terminal.

I never observed that it doesn't work. It always work with "ignore first,
use second report" model.

This is why I had simplified the patch by avoiding loop and checking
response for 0xff.

-- 
wbr, Kirill