linux-kernel - Re: [PATCH/RFC] Resolve 2 year old issue with different demands on EVIOCGRAB

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Mon, 25 Aug 2008 09:48:54 +1000
From:	Neil Brown <neilb@...e.de>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH/RFC]  Resolve 2 year old issue with different demands
	on EVIOCGRAB

On Friday August 22, dmitry.torokhov@...il.com wrote:
> 
> Maybe openmoko could just patch mousedev to ignore touchscreens for
> now, until X is fixed?

Maybe.  And in fact it already is!
As I delved further in to this issue, I find that not only is there a
patch in tslib to use EVIOCGRAB, but there is also a patch in the
kernel to exclude the "ABS_X + ABS_Y + BTN_TOUCH" case from mousedev,
making the EVIOCGRAB patch pointless.
And there might even be another patch in the kdrive Xserver to use
EVIOCGRAB in a different context (which might not actually be being
used, I'm not sure).  A twisted maze of little passages, all
twisted. :-)

But I am firmly against carrying patches like this which cannot go
upstream.  They can lead to subtle incompatibilities and can be hard
to get rid of.  I much prefer a solution that can work for everyone,
and I currently think the BTN_TOUCH -> BTN_STYLUS change is that
solution.  It remains to be seen which I can push into the openmoko
source tree :-)

Thanks,
NeilBrown
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/