linux-kernel - Re: [PATCH] ideapad-laptop: add new driver

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Date:	Fri, 13 Aug 2010 10:14:53 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Ike Panhc <ike.pan@...onical.com>
Cc:	platform-driver-x86@...r.kernel.org, linux-acpi@...r.kernel.org,
	Matthew Garrett <mjg@...hat.com>,
	Len Brown <len.brown@...el.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Corentin Chary <corentincj@...aif.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...ux.intel.com>,
	Thomas Renninger <trenn@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ideapad-laptop: add new driver

On Fri, 2010-08-13 at 12:08 +0800, Ike Panhc wrote:
> 
> The driver will bind on ACPI HID:VPC2004. When hotkey pressed, the
> notify
> function will be called and query EC to tell which key pressed.
> 
> Hotkeys enabled listed below:
>  * LCD backlight switch - reports KEY_DISPLAY_OFF
>  * One key restore - reports KEY_PROG1
>  * Brightness Up/down - reports KEY_BRIGHTNESS_CYCLE
>    Both up/down keys reports the same event. Need to find other way to
> detect
>  * Touchpad switch - reports KEY_F13
>  * Video output switch - reports KEY_SWITCHVIDEOMODE
>  * Camera switch - reports KEY_CAMERA
>  * Video resolution switch - reports KEY_VIDEO_NEXT
>  * S/W rfkill key - reports KEY_WLAN 

Hm, interesting. What model (and BIOS version) are you testing with?

On my S10-3, (DMI BIOS version 2ACN23WW, date 03/12/2010), I get these
keys through the normal keyboard controller -- and we can tell the
brightness up/down apart, too.

http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=9cd075e3

Do you see those keycodes too... and do they *stop* arriving through the
keyboard controller when you load your driver?

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@...el.com                              Intel Corporation

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