linux-kernel - Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony

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Date:	Tue, 10 Oct 2006 23:20:08 -0400
From:	Dmitry Torokhov <dtor@...ightbb.com>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Yu Luming <luming.yu@...il.com>,
	Alessandro Guido <alessandro.guido@...il.com>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, len.brown@...el.com,
	jengelh@...ux01.gwdg.de, gelma@...ma.net, ismail@...dus.org.tr
Subject: Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony_acpi driver

On Tuesday 10 October 2006 17:23, Matthew Garrett wrote:
> On Tue, Oct 10, 2006 at 11:17:23PM +0800, Yu Luming wrote:
> 
> > Also, we need to make hot-key events  have similar handling code .
> > For example, Fn+F5 and Fn+F6 are brightness down and up key on my sony laptop.  
> > There is a driver called sonypi.c can map Fn+F5/F6 to KEY_FN_F5/F6. But I 
> > think It should be mapped to KEY_BRIGHTNESSDOWN/UP (linux/input.h)
> > Although, sonypi.c is NOT so clean, but , if it can report right event to 
> > input layer for all sony laptop(it works for me), and all related functions 
> > can be controlled through generic sysfs interface, then I would say sony has 
> > the best hot-key solution I have even seen so far for linux.
> 
> It would have to be DMI-based to some extent - not all Sonys use the 
> same keys for the same purpose. Misery ensues.
> 

Then we need to add keymap table to the sonypi's input device so that
keymap can be changed from userspace.

-- 
Dmitry
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