linux-kernel - Re: [PATCH v3] input: tegra-kbc

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Message-ID: <20110111143337.GB22390@atrey.karlin.mff.cuni.cz>
Date:	Tue, 11 Jan 2011 15:33:37 +0100
From:	Pavel Machek <pavel@....cz>
To:	Rakesh Iyer <riyer@...dia.com>
Cc:	'Dmitry Torokhov' <dmitry.torokhov@...il.com>,
	"jj@...osbits.net" <jj@...osbits.net>,
	"tsoni@...eaurora.org" <tsoni@...eaurora.org>,
	"shubhrajyoti@...com" <shubhrajyoti@...com>,
	"ccross@...roid.com" <ccross@...roid.com>,
	"konkers@...roid.com" <konkers@...roid.com>,
	"olof@...om.net" <olof@...om.net>, Andrew Chew <AChew@...dia.com>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>
Subject: Re: [PATCH v3] input: tegra-kbc - Add tegra keyboard driver

Hi!

> > > +	int fifo[KBC_MAX_KPENT];
> > > +	const struct tegra_kbc_platform_data *pdata;
> > > +	int *plain_keycode;
> > > +	int *fn_keycode;
> > 
> > There should not be separate keycodes for FN and normal kys - FN is just
> > a modifier, like SHIFT or CTRL or ALT are and shoudl be handled in upper
> > layers.
> 
> We had the same thought regarding Function as a modifier akin to Shift, Ctrl an Alt.
> But this does not appear to be the case. 
> 
> This keyboard is used primarily for Laptop-like form factors where function keys are used to overload the existing keys. 
> In addition the Fn key mappings aren't identical in different keyboard layouts.
> 
> So at this point in order to function with the target hardware and
> the target operating system which is Chrome, this modifier
> keymap is necessary.

Please find a way to do this cleanly. Other machines (zaurus) have
similar keyboards...
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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