From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bastien Nocera <hadess@hadess.net>
Subject: Re: [PATCH] ideapad: let Fn+F5 also trigger KEY_BLUETOOTH
Date: Tue, 14 Jun 2011 10:21:59 +0100
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To: Ike Panhc <ike.pan@canonical.com>
Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Matthew Garrett <mjg@redhat.com>, Dmitry Torohov <dmitry.torokhov@gmail.com>

On Tue, 2011-06-14 at 16:28 +0800, Ike Panhc wrote:
> The design for ideapad Fn-F5 key is not only for wifi but for all
> radio device including wifi, bluetooth and wwan. Idealy it shall
> acts like this:
> 
>     wifi on          wifi off         wifi on         wifi off
>      bt on   ----->   bt on   ----->   bt off  ----->  bt off
> 
> This patch will switch wifi mode every key-push and switch
> bluetooth mode every two key-push.

If that's what you want to achieve, then the key should be KEY_RFKILL.
That's what the key is there for.