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From: Chase Douglas <chase.douglas@canonical.com>
To: Henrik Rydberg <rydberg@euromail.se>
Cc: Jiri Kosina <jkosina@suse.cz>,
	Michael Poole <mdpoole@troilus.org>, Tejun Heo <tj@kernel.org>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/7 v3] HID: magicmouse: simplify multitouch feature request
Date: Wed, 01 Sep 2010 09:50:42 -0400	[thread overview]
Message-ID: <1283349042.2255.400.camel@mini> (raw)
In-Reply-To: <4C7E51AA.2050004@euromail.se>

On Wed, 2010-09-01 at 15:14 +0200, Henrik Rydberg wrote:
> On 09/01/2010 02:34 PM, Chase Douglas wrote:
> 
> > On Wed, 2010-09-01 at 09:43 +0200, Henrik Rydberg wrote:
> >> On 09/01/2010 03:56 AM, Chase Douglas wrote:
> >>
> >>> From: Chase Douglas <chase.douglas@ubuntu.com>
> >>>
> >>> Only the first feature request is required to put the Magic Mouse into
> >>> multitouch mode. This is also the case for the Magic Trackpad, for which
> >>> support will be added in a later commit.
> >>>
> >>> Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
> >>> Acked-by: Michael Poole <mdpoole@troilus.org>
> >>> ---
> >>
> >>
> >> Since this is starting to look awfully similar to the mode switch found in
> >> appletouch and bcm5974, I wonder what happens to the stream from the device when
> >> the connection to hid is closed. It could be that the mode switch should be
> >> moved to open/close instead.
> > 
> > I don't really understand what you are proposing. It sounds like maybe
> > you want the device to continue to function in a non-multitouch way
> > after hid disconnection, but the device needs hid to function at all.
> 
> 
> Suspend/resume, broken bt connections, etc. There was an issue with the bcm5974
> macbook trackpads not functioning properly after a close unless returned to
> normal mode. The mode switch code was moved to the open/close functions for that
> reason.

I'm not sure how applicable this is to a bluetooth device though. On
suspend, the device is disconnected. On resume, the device should
reconnect through the hid layer again.

> > The closest thing I can think to what you are saying is to do whatever
> > it takes on module removal so that it goes back to functioning in the
> > non-multitouch mode. That may be possible.
> 
> 
> Sounds like a good start. Doing a suspend test just now I could not get the
> device up again, for whatever reason.

I'm having some sporadic issues too, but when I hit issues and I use
ftrace I see that the hid layer isn't doing everything it should. I'm
not sure how much is the fault of hid vs the driver.

-- Chase


  reply	other threads:[~2010-09-01 13:50 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-01  1:56 [PATCH 0/7 v3] HID: magicmouse: fixes and support for the Magic Trackpad (v3) Chase Douglas
2010-09-01  1:56 ` [PATCH 1/7 v3] HID: magicmouse: don't allow hidinput to initialize the device Chase Douglas
2010-09-01 18:01   ` Jiri Slaby
2010-09-01 23:57     ` Michael Poole
2010-09-02  9:28       ` Jiri Slaby
2010-09-02 12:06         ` Michael Poole
2010-09-03 11:25           ` Jiri Slaby
2010-09-04  1:10             ` Michael Poole
2010-09-05 15:16             ` [RFC PATCH] hid-magicmouse: Map inputs rather than munging input devices Michael Poole
2010-09-18 12:50               ` Chase Douglas
2010-09-01  1:56 ` [PATCH 2/7 v3] HID: magicmouse: simplify multitouch feature request Chase Douglas
2010-09-01  7:43   ` Henrik Rydberg
2010-09-01 12:34     ` Chase Douglas
2010-09-01 13:14       ` Henrik Rydberg
2010-09-01 13:50         ` Chase Douglas [this message]
2010-09-03 13:57   ` Jiri Kosina
2010-09-01  1:56 ` [PATCH 3/7 v3] HID: magicmouse: simplify touch data bit manipulation Chase Douglas
2010-09-03 14:07   ` Jiri Kosina
2010-09-01  1:56 ` [PATCH 4/7 v3] HID: magicmouse: simplify touch down logic Chase Douglas
2010-09-01  2:23   ` Michael Poole
2010-09-02 14:50     ` Jiri Kosina
2010-09-01  1:56 ` [PATCH 5/7 v3] HID: magicmouse: remove timestamp logic Chase Douglas
2010-09-01  2:24   ` Michael Poole
2010-09-02 14:52     ` Jiri Kosina
2010-09-01  1:56 ` [PATCH 6/7 v3] HID: magicmouse: enable Magic Trackpad support Chase Douglas
2010-09-03 14:05   ` Jiri Kosina
2010-09-01  1:56 ` [PATCH 7/7 v3] HID: magicmouse: Adjust major / minor axes to scale Chase Douglas
2010-09-02 14:55   ` Jiri Kosina
2010-09-07 13:50     ` Chase Douglas

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