linux-kernel - Re: [PATCH] input: mt: Add an envelope tool type

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

Message-ID: <4D002FE5.2070609@euromail.se>
Date:	Thu, 09 Dec 2010 02:24:53 +0100
From:	Henrik Rydberg <rydberg@...omail.se>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	Ping Cheng <pinglinux@...il.com>,
	Chase Douglas <chase.douglas@...onical.com>,
	Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] input: mt: Add an envelope tool type

On 12/09/2010 02:17 AM, Dmitry Torokhov wrote:

> On Thu, Dec 09, 2010 at 02:12:08AM +0100, Henrik Rydberg wrote:
>>>>>
>>
>>>>> Is it assumed that the envelop has only two touches comprising it? Or is
>>>>> it any number of touches? If it's any number of touches, how does one
>>>>> know how many touches it is?
>>>>
>>>> Those are good questions. Specifying how many touches are in the
>>>> envelop makes sense. It also covers rectangle as a special case of
>>>> envelop.
>>>
>>> I have a feeling that trying to accomodate non-rectangular, more than 2
>>> point shapes without using native MT data is over-engineering the
>>> problem... Do we have examples other than older generation Elantechs and
>>> Synaptics that need envelope notion?
>>>
>>
>>
>> Those are the ones targeted so far. Maybe appletouch could be added to the list
>> as well. I imagine all drivers will end up using zero, one and two envelope points.
> 
> Even ones that fully support independent finger tracking?
> 


No, sorry, that should read "all drivers in that list". The ones that can detect
individual fingers in space are fine as they are.
--
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/