linux-kernel - Re: [PATCH v3 13/20] Input: bcm5974 - Drop pressure and width emulation

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Message-ID: <20120913184144.GB3178@polaris.bitmath.org>
Date:	Thu, 13 Sep 2012 20:41:44 +0200
From:	"Henrik Rydberg" <rydberg@...omail.se>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 13/20] Input: bcm5974 - Drop pressure and width
 emulation

On Wed, Sep 12, 2012 at 11:57:24PM -0700, Dmitry Torokhov wrote:
> On Sat, Sep 01, 2012 at 09:47:08PM +0200, Henrik Rydberg wrote:
> > The ABS_PRESSURE and ABS_WIDTH have special scales, and were initially
> > added solely for thumb and palm recognition in the synaptics driver.
> > This never really get used, however, and userspace quickly moved to
> > MT solutions instead. This patch drops the unused events.
> 
> How can you know that? There could still be people using ST emulation
> with this device. I think we should keep it.

Alright, maybe we need to carry this still. Probability = macbook *
old_userland * new_kernel * working_synaptics * tuned_palm_parameters,
must be a pretty large number. ;-)

Henrik
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