linux-kernel - Re: [PATCH 58/62] msi-laptop: Support some MSI 3G netbook that is need load SCM

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Date:	Tue, 2 Mar 2010 15:46:14 -0800
From:	Greg KH <gregkh@...e.de>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	linux-kernel@...r.kernel.org, "Lee, Chun-Yi" <jlee@...ell.com>,
	Lennart Poettering <mzxreary@...inter.de>
Subject: Re: [PATCH 58/62] msi-laptop: Support some MSI 3G netbook that is
 need load SCM

On Tue, Mar 02, 2010 at 11:39:29PM +0000, Matthew Garrett wrote:
> On Tue, Mar 02, 2010 at 03:28:57PM -0800, Greg Kroah-Hartman wrote:
> > From: Lee, Chun-Yi <jlee@...ell.com>
> > 
> > Some MSI 3G netbook only have one fn key to control Wlan/Bluetooth/3G,
> > those netbook will load the SCM (windows app) to disable the original
> > Wlan/Bluetooth control by BIOS when user press fn key, then control
> > Wlan/Bluetooth/3G by SCM (software control by OS). Without SCM, user
> > cann't on/off 3G module on those 3G netbook.
> > On Linux, msi-laptop driver will do the same thing to disable the
> > original BIOS control, then might need use HAL or other userland
> > application to do the software control that simulate with SCM.
> > e.g. MSI N034 netbook
> 
> How does the function key event get reported to userland? This should 
> generate KEY_RFKILL and then just go through rfkill-input.

I'm pretty sure that Joey is using rfkill here, but I didn't realize
that it also supported an input device.

This code is just detecting the keypress, and acting on it, I think,
right Joey?  Isn't that the way this is supposed to work?  Or is it
supposed to use rfkill-input, which then userspace turns around and
calls the other rfkill interface to then disable the wireless?  If so, I
think a number of laptop drivers need to be changed to do this.

thanks,

greg k-h
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