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From: Takashi Iwai <tiwai@suse.de>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Henrik Rydberg <rydberg@euromail.se>,
	Chase Douglas <chase.douglas@canonical.com>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] Input: synaptics - multitouch and multifinger support
Date: Mon, 11 Oct 2010 09:28:10 +0200	[thread overview]
Message-ID: <s5hzkul2np1.wl%tiwai@suse.de> (raw)
In-Reply-To: <20101010205932.GB18455@core.coreip.homeip.net>

At Sun, 10 Oct 2010 13:59:32 -0700,
Dmitry Torokhov wrote:
> 
> On Sun, Oct 10, 2010 at 09:49:45AM +0200, Henrik Rydberg wrote:
> > Takashi, Chase,
> > 
> > talk about Heinz effect. :-)
> > 
> > Rather than taking any of the patches, I was wondering if we could get a single
> > patch including all the later findings and considerations on what devices should
> > have the multitouch mode. Also, unless there is a really really good reason for
> > it, without kernel parameters. After all, these patches should only add new
> > functionality without regressions.
> 
> Yes, I think we should limit number of module options (and even more so
> Kconfig options). I believe that either MT support is ready for prime-time
> and then it should be enabled unconditionally, or it is not ready and
> should be kept as patches. his also means that we should not introduce
> regressions in ST (even when emulated in MT mode).

Right, but it's pretty hard to know whether it works really for all
machines, simply because the current MT-detection is nothing but a
pure guess work.  As mentioned in another mail, there are devices that
have no this bit but reports multi-finger detections without
tracking.  So, there are definitely other things to be checked.

Thus, I'm inclined to add a module option, at least, for *disabling*
MT for non-working machines.  Also, another question is whether it's
safe to enable MT even for user-space that don't understand MT.


Takashi

  reply	other threads:[~2010-10-11  7:28 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-08 14:57 [PATCH 0/3] Input: synaptics - multitouch and multifinger support Chase Douglas
2010-10-08 14:57 ` [PATCH 1/3] Input: synaptics - add multitouch support Chase Douglas
2010-10-08 14:57   ` [PATCH 2/3] Input: synaptics - add multitouch multifinger support Chase Douglas
2010-10-08 14:58     ` [PATCH 3/3] Input: synaptics - remove touches over button click area Chase Douglas
2010-10-10 15:58       ` Chris Bagwell
2010-10-11 16:24       ` Chris Bagwell
2010-10-11 16:24         ` Chris Bagwell
2010-10-11 17:10         ` Takashi Iwai
2010-10-11 17:10           ` Takashi Iwai
2010-10-11 17:30           ` Dmitry Torokhov
2010-10-11 17:30             ` Dmitry Torokhov
2010-10-11 17:40             ` Takashi Iwai
2010-10-11 17:46           ` Chris Bagwell
2010-10-11 17:46             ` Chris Bagwell
2010-10-11 17:54             ` Henrik Rydberg
2010-10-11 18:29             ` Takashi Iwai
2010-10-11 18:29               ` Takashi Iwai
2010-10-10 15:44     ` [PATCH 2/3] Input: synaptics - add multitouch multifinger support Chris Bagwell
2010-10-10 15:37   ` [PATCH 1/3] Input: synaptics - add multitouch support Chris Bagwell
2010-10-10 15:41   ` Chris Bagwell
2010-10-08 16:37 ` [PATCH 0/3] Input: synaptics - multitouch and multifinger support Takashi Iwai
2010-10-08 16:38   ` Takashi Iwai
2010-10-08 17:48     ` Takashi Iwai
2010-10-08 17:15   ` Chase Douglas
2010-10-08 17:46     ` Takashi Iwai
2010-10-08 18:04     ` Dmitry Torokhov
2010-10-08 19:31       ` Takashi Iwai
2010-10-10 21:04         ` Dmitry Torokhov
2010-10-11  7:35           ` Takashi Iwai
2010-10-11  7:48             ` Henrik Rydberg
2010-10-11  7:59               ` Takashi Iwai
2010-10-11 13:41               ` Chris Bagwell
2010-10-11 13:41                 ` Chris Bagwell
2010-10-11 14:01                 ` Takashi Iwai
2010-10-11 14:01                   ` Takashi Iwai
2010-10-11 14:24                   ` Henrik Rydberg
2010-10-11 14:49                     ` Takashi Iwai
2010-10-11 15:31                       ` Henrik Rydberg
2010-10-11 15:58                         ` Takashi Iwai
2010-10-10  7:49   ` Henrik Rydberg
2010-10-10 20:59     ` Dmitry Torokhov
2010-10-11  7:28       ` Takashi Iwai [this message]
2010-10-11  7:40         ` Henrik Rydberg

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