linux-kernel - Re: [PATCH 0/8] [Resend] ideapad: using EC command to control rf/camera power

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Message-ID: <1282224517.1730.2.camel@localhost>
Date:	Thu, 19 Aug 2010 14:28:36 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Ike Panhc <ike.pan@...onical.com>
Cc:	Mario 'BitKoenig' Holbe <Mario.Holbe@...Ilmenau.DE>,
	"platform-driver-x86@...r.kernel.org" 
	<platform-driver-x86@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	Thomas Renninger <trenn@...e.de>,
	Alan Cox <alan@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Corentin Chary <corentincj@...aif.net>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	"Brown, Len" <len.brown@...el.com>,
	Matthew Garrett <mjg@...hat.com>
Subject: Re: [PATCH 0/8] [Resend] ideapad: using EC command to control
 rf/camera power

On Thu, 2010-08-19 at 11:21 +0800, Ike Panhc wrote:
> 
> > 2nd: both Bluetooth killswitches reproducibly disappear when I block
> > ideapad_bluetooth either via Gnome bluetooth-applet or via rfkill block
> > 1 and subsequently reboot. After the reboot rfkill list shows:
> > 
> > 0: ideapad_wlan: Wireless LAN
> >         Soft blocked: no
> >         Hard blocked: no
> > 1: ideapad_killsw: Wireless LAN
> >         Soft blocked: no
> >         Hard blocked: no
> > 2: phy0: Wireless LAN
> >         Soft blocked: no
> >         Hard blocked: no
> > 
> > Powering the machine off and on again restores both killswitches.
> > Interesting is: this does not happen when I boot into single-user mode,
> > rfkill block 1 there and reboot. In this case, both killswitches are
> > back.
> This is interesting. looks like the cfgbit will change on S12 if BIOS
> remember it has to shutdown when booting. I will try if the same problem
> happen on my ideapads. 

If we can solve this, I'm inclined to suggest that we submit your code
to Linus to replace mine in 2.6.36. We needed *something* as a stopgap
to solve the rfkill issues, but this is better than what we have in
2-6.36-rc1.

-- 
dwmw2

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