linux-kernel - Re: [patch 0/2] [PATCH] input: correctly handle keys without hardware release event

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Message-ID: <929318d30705132316w300fe8e4ue98a02e85cd82cfb@mail.gmail.com>
Date:	Mon, 14 May 2007 08:16:29 +0200
From:	"Giel de Nijs" <giel@...feinetrip.com>
To:	"Dmitry Torokhov" <dtor@...ightbb.com>
Cc:	linux-kernel@...r.kernel.org, "Vojtech Pavlik" <vojtech@...e.cz>,
	"Matthew Garrett" <mjg59@...f.ucam.org>,
	"Matt Domsch" <matt_domsch@...l.com>,
	"Rezwanul Kabir" <rezwanul_kabir@...l.com>,
	linux-input@...ey.karlin.mff.cuni.cz
Subject: Re: [patch 0/2] [PATCH] input: correctly handle keys without hardware release event

On 5/14/07, Dmitry Torokhov <dtor@...ightbb.com> wrote:

> > This patch adds a soft release key mask to input_dev, to enable keyboard
> > drivers to determine which keys never generate a hardware release event and
> > hence add a release event after every press event of such keys. The mask is
> > controlled by ioctls.
>
> I don't think we want to add all the infrastructure for the benefit of single
> driver. Can we add a quirk to atkbd and activate it based on DMI?

As the atkbd.c driver already had a work-around for exactly the same problem
with some (I think) Korean keyboards (KEY_HANGEUL and KEY_HANJA), adding
this infrastructure (well, one pointer and two ioctls) seemed a logical step.
If you prefer a hack just in atkbd.c and activate it on Dell laptops, I see
what I can do. The problem with that is that I don't know the scancodes of
all keys on all models (and future models) that exhibit this behaviour. I'll
implement what I know, though (it'll take some time because I'll be
travelling quite a lot very soon).

Greetings,
Giel
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