linux-kernel - Re: [PATCH] trackpoint: enable selection of press-to-select button

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Message-ID: <6b1460640907010344y5d73c5f4pbda88a54fd36095d@mail.gmail.com>
Date:	Wed, 1 Jul 2009 12:44:52 +0200
From:	Tom Weissmann <tom.weissmann@...il.com>
To:	Pavel Machek <pavel@....cz>
Cc:	rubini@...vis.unipv.it, linux-kernel@...r.kernel.org, jikos@...e.cz
Subject: Re: [PATCH] trackpoint: enable selection of press-to-select button

2009/6/30 Pavel Machek <pavel@....cz>:

>> With this patch the trackpoint sysfs variable press-to-select can be
>> set not only to 0 (off), 1 (left button), but also to 2 (middle
>> button) and 3 (right button). This makes the feature more useful for
>> left-handed users with no visible changes to the right-handed default
>> behaviour.
>
> Uhuh. Ugly as night. Could we instead convert press to button 4, and
> let userland map it?

This would be much better.

However, as far as I know it is not possible to distinguish a "real"
button click from a PTS one.
The PTS button is determined by 3 masks (button 1, 2, 3). I believe
that if more than one mask is set, PTS will still only generate one
click, not two simultaneous ones.

Regards,
Tom
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