From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Henrik Rydberg <rydberg@euromail.se>
Cc: Jiri Kosina <jkosina@suse.cz>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] input: mt: Add pressure to pointer emulation code
Date: Tue, 30 Nov 2010 01:09:34 -0800 [thread overview]
Message-ID: <20101130090934.GC3952@core.coreip.homeip.net> (raw)
In-Reply-To: <4CF38C67.20509@euromail.se>
On Mon, Nov 29, 2010 at 12:20:07PM +0100, Henrik Rydberg wrote:
> >> @@ -124,9 +125,13 @@ void input_mt_report_pointer_emulation(struct input_dev
> *dev)
>
> >> if (oldest) {
> >> int x = input_mt_get_value(oldest, ABS_MT_POSITION_X);
> >> int y = input_mt_get_value(oldest, ABS_MT_POSITION_Y);
> >> + int p = input_mt_get_value(oldest, ABS_MT_PRESSURE);
> >
> > What if device does not report ABS_MT_PRESSURE/ABS_PRESSURE? Do we rely
> > on input core to suppress unsupported events? A comment would be nice...
>
>
> Yes, the setup values are the only ones producing output here. How about this
> addition to the function text: "The input core ensures only the KEY and ABS axes
> already setup for this device will produce output."?
Yep, that works.
>
> > Also, is there a gelper to set up pointer emulation capabilities for MT
> > device?
>
>
> This is certainly the plan with time, but currently it seemed best to leave the
> rest of the event setup code untouched.
>
OK, just throwing ideas around ;)
--
Dmitry
prev parent reply other threads:[~2010-11-30 9:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-29 7:13 [PATCH 0/4] input: mt: Driver interface simplifications Henrik Rydberg
2010-11-29 7:13 ` [PATCH 1/4] input: mt: Break out slots handling Henrik Rydberg
2010-11-29 7:13 ` [PATCH 2/4] input: mt: Collect slots initialization code Henrik Rydberg
2010-11-29 7:13 ` [PATCH 3/4] input: mt: Move tracking and pointer emulation to input-mt Henrik Rydberg
2010-11-30 21:50 ` Henrik Rydberg
2010-11-29 7:13 ` [PATCH 4/4] input: mt: Add pressure to pointer emulation code Henrik Rydberg
2010-11-29 9:47 ` Dmitry Torokhov
2010-11-29 11:20 ` Henrik Rydberg
2010-11-30 9:09 ` Dmitry Torokhov [this message]
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