Thread (59 messages) 59 messages, 7 authors, 2014-05-22

Re: [PATCH v4 00/24] input: Introduce ff-memless-next as an improved replacement for ff-memless

From: Jiri Kosina <hidden>
Date: 2014-05-12 09:14:46
Also in: lkml

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?

Thanks,

-- 
Jiri Kosina
SUSE Labs
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