From: "Michal Malý" <madcatxster@devoid-pointer.net>
To: Jiri Kosina <jkosina@suse.cz>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
dmitry.torokhov@gmail.com, elias.vds@gmail.com,
anssi.hannula@iki.fi, simon@mungewell.org
Subject: Re: [PATCH v4 00/24] input: Introduce ff-memless-next as an improved replacement for ff-memless
Date: Mon, 12 May 2014 11:26:21 +0200 [thread overview]
Message-ID: <10531507.qTZk3SL8f1@sigyn> (raw)
In-Reply-To: <alpine.LNX.2.00.1405121112520.5813@pobox.suse.cz>
On Monday 12 of May 2014 11:14:42 Jiri Kosina wrote:
> On Sat, 26 Apr 2014, Michal Malý wrote:
> > ff-memless-next (MLNX) is a largely improved version of the current
> > ff-memless (FFML) driver. MLNX supports all force feedback effects
> > currently available in the Linux force feedback userspace API. All
> > effects are handled in accordance with Microsoft's DirectInput/XInput.
> > Most notable changes include support for conditional effects, proper
> > handling of all periodic waveforms and improved emulation of rumble
> > effects through periodic effects. MLNX also uses its own kernel API to
> > pass processed effects to hardware-specific drivers instead of abusing
> > "ff_effect" struct. The API is documented in the respective header file.
> >
> > MLNX has been expanded to be a direct replacement for FFML.
> >
> > Support for FF_PERIODIC and FF_RAMP has been added to all devices that
> > support FF_CONSTANT as a part of the port to the new API.
> >
> > This patch series:
> > 1) Adds "ff-memless-next" module [1]
> > 2) Ports all hardware-specific drivers to MLNX's API [2-23]
> > 3) Removes FFML and replaces it with MLNX [24]
>
> Dmitry,
>
> what are your plans with this, please?
>
> I personally don't really completely like having two implementations of FF
> in the kernel; can't it be really done as an extension to ff-memless?
There will be no duplication. This patchset fully replaces "ff-memless" with
"ff-memless-next". Even though "ff-memless-next" is basically an extended
version of "ff-memless", the extent of the changes makes it look very much like
a rewrite.
If you are concerned about any confusion due to the "ff-memless" -> "ff-memless-
next" name change I can modify the code to make it look like "ff-memless" if
you think that'd be more appropriate. However, given the scope of the changes
I considered it a better idea to implement this as a new driver to make it
clear that ff-memless-next behaves differently from the HW-specific drivers'
perspective.
Michal
prev parent reply other threads:[~2014-05-12 9:26 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-26 15:01 [PATCH v4 00/24] input: Introduce ff-memless-next as an improved replacement for ff-memless Michal Malý
2014-04-26 15:02 ` [PATCH v4 01/24] input: Add ff-memless-next module Michal Malý
2014-05-14 6:38 ` Dmitry Torokhov
2014-05-14 8:35 ` Michal Malý
2014-05-14 11:26 ` Elias Vanderstuyft
2014-05-14 15:11 ` simon
2014-05-14 17:58 ` Dmitry Torokhov
2014-05-14 18:05 ` Dmitry Torokhov
2014-05-14 19:38 ` Michal Malý
2014-05-20 9:27 ` Michal Malý
2014-05-20 18:32 ` Roland Bosa
2014-05-20 19:00 ` Michal Malý
2014-05-20 21:38 ` Roland Bosa
2014-05-21 14:53 ` Elias Vanderstuyft
[not found] ` <537D28E3.3000401@logitech.com>
2014-05-21 22:42 ` simon
2014-05-20 19:39 ` simon
2014-05-20 22:04 ` Roland Bosa
2014-05-20 23:30 ` simon
2014-05-21 1:17 ` Roland Bosa
2014-05-21 2:13 ` Michal Malý
2014-05-21 10:17 ` Nestor Lopez Casado
2014-05-21 14:08 ` Elias Vanderstuyft
2014-05-21 13:35 ` Elias Vanderstuyft
2014-05-21 14:22 ` Elias Vanderstuyft
2014-05-21 14:05 ` Elias Vanderstuyft
2014-05-20 20:16 ` simon
2014-05-20 20:58 ` Michal Malý
2014-05-20 21:26 ` Elias Vanderstuyft
2014-05-22 9:48 ` Elias Vanderstuyft
2014-05-20 23:45 ` simon
2014-05-21 0:08 ` Michal Malý
2014-05-14 18:14 ` Dmitry Torokhov
2014-05-14 19:40 ` Michal Malý
2014-04-26 15:02 ` [PATCH v4 02/24] input: Port arizona-haptics to ff-memless-next Michal Malý
2014-04-26 15:02 ` [PATCH v4 03/24] input: Port twl4030-vibra " Michal Malý
2014-04-26 15:02 ` [PATCH v4 04/24] input: Port twl6040-vibra " Michal Malý
2014-04-26 15:02 ` [PATCH v4 05/24] input: Port max8997_haptic " Michal Malý
2014-04-26 15:02 ` [PATCH v4 06/24] input: Port pm8xxx-vibrator " Michal Malý
2014-04-26 15:02 ` [PATCH v4 07/24] hid: Port hid-axff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 08/24] hid: Port hid-emsff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 09/24] hid: Port hid-dr " Michal Malý
2014-04-26 15:02 ` [PATCH v4 10/24] hid: Port hid-gaff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 11/24] hid: Port hid-holtekff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 12/24] hid: Port hid-lgff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 13/24] hid: Port hid-lg3ff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 14/24] hid: Port hid-pl " Michal Malý
2014-04-26 15:02 ` [PATCH v4 15/24] hid: Port hid-sjoy " Michal Malý
2014-04-26 15:02 ` [PATCH v4 16/24] hid: Port hid-sony " Michal Malý
2014-04-26 15:02 ` [PATCH v4 17/24] hid: Port hid-tmff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 18/24] hid: Port hid-wiimote-modules " Michal Malý
2014-04-26 15:02 ` [PATCH v4 19/24] hid: Port hid-zpff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 20/24] input: Port gamecon " Michal Malý
2014-04-26 15:02 ` [PATCH v4 21/24] input: Port xpad " Michal Malý
2014-04-26 15:02 ` [PATCH v4 22/24] hid: Port hid-lg2ff " Michal Malý
2014-04-26 15:02 ` [PATCH v4 23/24] hid: Port hid-lg4ff " Michal Malý
2014-04-29 16:05 ` simon
2014-04-26 15:02 ` [PATCH v4 24/24] input: Replace ff-memless with ff-memless-next Michal Malý
2014-04-29 15:59 ` [PATCH v4 00/24] input: Introduce ff-memless-next as an improved replacement for ff-memless simon
2014-05-12 9:14 ` Jiri Kosina
2014-05-12 9:26 ` Michal Malý [this message]
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