From: "Henrik Rydberg" <rydberg@euromail.se>
To: Yufeng Shen <miletus@chromium.org>
Cc: linux-input@vger.kernel.org, Jiri Kosina <jkosina@suse.cz>,
linux-kernel@vger.kernel.org, Daniel Kurtz <djkurtz@chromium.org>,
Andrew de los Reyes <adlr@chromium.org>
Subject: Re: [PATCH] HID: magicmouse: Implement Multi-touch Protocol B (MT-B)
Date: Mon, 2 Jul 2012 12:07:41 +0200 [thread overview]
Message-ID: <20120702100741.GA1496@polaris.bitmath.org> (raw)
In-Reply-To: <1340913271-588-1-git-send-email-miletus@chromium.org>
On Thu, Jun 28, 2012 at 03:54:31PM -0400, Yufeng Shen wrote:
> The driver for Apple Magic Trackpad/Mouse currently uses
> Multi-touch Protocol A (MT-A) to report touch events and uses
> ABS_MT_TRACKING_ID to do finger tracking. The fact of the device
> being able to track individual finger makes it possible to
> report touch events using MT-B. This patch adds the support
> for the driver to report MT-B and makes it configurable through
> module parameter so that existing codes that are relying on its
> MT-A implemtation don't get affected.
Are there any such codes? Most systems, if not all, seem to use mtdev,
which can handle both protocols. I do not think a parameter switch is
a good idea. Switching to MT-B or leaving things as is look like the
viable options.
Thanks,
Henrik
next prev parent reply other threads:[~2012-07-02 10:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-28 19:54 [PATCH] HID: magicmouse: Implement Multi-touch Protocol B (MT-B) Yufeng Shen
2012-07-02 10:07 ` Henrik Rydberg [this message]
2012-07-02 18:50 ` Chase Douglas
2012-07-02 18:52 ` Chase Douglas
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