From: Jiri Kosina <jkosina@suse.cz>
To: "Michal Malý" <madcatxster@prifuk.cz>
Cc: Simon Wood <simon@mungewell.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-input@vger.kernel.org
Subject: Re: [PATCH 2/5] Port hid-lg4ff to ff-memless-next
Date: Thu, 20 Feb 2014 16:16:52 +0100 (CET) [thread overview]
Message-ID: <alpine.LNX.2.00.1402201616270.1192@pobox.suse.cz> (raw)
In-Reply-To: <7140464.ckcuvrghVW@geidi-prime>
On Wed, 5 Feb 2014, Michal Malý wrote:
> > > We need to think carefully on this as a '+10' combined with '-10' force
> > > will result in '0'; however we do not want to deactivate the wheel
> > > (no-resistance mode) as this will result in 'ticking' on the wheel as
> > > force transitions through 0.... ideally we'd need to know that there are
> > > no forces set.
> >
> > No problem Simon, this is thought about:
> > If forces are active, and they cancel out, hid_lg4ff_start_combined is
> > called with 0 force (scaled_x = 0x80), instead of hid_lg4ff_stop_combined
> > as you assumed.
>
> Okay, so to set things straight: I should modify to patch to send 0x13 when
> the effect is fully stopped and use 0x11 0x80 to only zeroize the force when
> the overall force is zero? My DFP doesn't differentiate between these states
> so I cannot tell what is the right thing to do.
Has there been any conclusion to this, please?
--
Jiri Kosina
SUSE Labs
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next prev parent reply other threads:[~2014-02-20 15:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-04 22:06 [PATCH 0/5] Add ff-memless-next and make hid-lg4ff use it Michal Malý
2014-02-04 22:10 ` [PATCH 1/5] Add ff-memless-next Michal Malý
2014-02-04 22:11 ` [PATCH 2/5] Port hid-lg4ff to ff-memless-next Michal Malý
2014-02-04 22:12 ` [PATCH 3/5] Add support for periodic effects in hid-lg4ff Michal Malý
2014-02-04 22:13 ` [PATCH 4/5] Add support for ramp effect " Michal Malý
2014-02-04 22:14 ` [PATCH 5/5] Remove the note that no driver currently uses ff-memless-next Michal Malý
[not found] ` <CADbOyBS8C+OR5D6EhNCY4O-nMsb5XXdHmkN+8wzj=vT7kXy4pw@mail.gmail.com>
2014-02-04 23:54 ` [PATCH 2/5] Port hid-lg4ff to ff-memless-next Michal Malý
2014-02-05 0:03 ` Michal Malý
2014-02-05 0:08 ` simon
[not found] ` <CADbOyBSXKvRpTB-3NezDhFwggrD7i7qS9e6Aa4JWUe_BynVH3g@mail.gmail.com>
2014-02-05 9:35 ` Michal Malý
2014-02-20 15:16 ` Jiri Kosina [this message]
2014-02-20 15:32 ` Michal Malý
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