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

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Date:	Wed, 18 Aug 2010 17:51:28 +0200
From:	"Mario 'BitKoenig' Holbe" <Mario.Holbe@...Ilmenau.DE>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Ike Panhc <ike.pan@...onical.com>,
	"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 Wed, Aug 18, 2010 at 11:35:19AM +0100, David Woodhouse wrote:
> On Wed, 2010-08-18 at 09:36 +0100, Ike Panhc wrote:
> > This driver is tested and work fine on Lenovo ideapad B550 and ideapad S10-3.
> Works for me too (on S10-3); thanks.

It works for me too on S12 w/ VIA Nano - at least somehow... I have two
issues with it:

1st: the camera is not detected:

$ dmesg | grep -i cam
[    3.062601] usb 1-4: Product: Lenovo EasyCamera
[    7.828202] uvcvideo: Found UVC 1.00 device Lenovo EasyCamera (5986:0241)
[    7.842987] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:10.4/usb1/1-4/1-4:1.0/input/input6
$ lsusb | grep -i cam
Bus 001 Device 002: ID 5986:0241 Acer, Inc BisonCam, NB Pro
$ rfkill list
0: ideapad_wlan: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: ideapad_bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
2: ideapad_killsw: Wireless LAN
        Soft blocked: no
        Hard blocked: no
3: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
4: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

Fn-Esc switches the Camera off and on, but there seems to be no soft
killswitch for it. I have no idea how to parse through acpidump to find
out whether there is some similar device listed or not.


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.


regards
   Mario
-- 
File names are infinite in length where infinity is set to 255 characters.
                                -- Peter Collinson, "The Unix File System"

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