linux-kernel - Re: [PATCH] hp-wmi: improve rfkill support

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Date:	Thu, 23 Jul 2009 17:31:45 +0200
From:	Maciej Rutecki <maciej.rutecki@...il.com>
To:	Alan Jenkins <alan-jenkins@...fmail.co.uk>
Cc:	Matthew Garrett <mjg@...hat.com>,
	linux acpi <linux-acpi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] hp-wmi: improve rfkill support

2009/7/21 Alan Jenkins <alan-jenkins@...fmail.co.uk>:
> 1) Add support for reading the hardware blocked state.  Previously
>   we read a combination of the hardware and software blocked states,
>   reporting it as the software blocked state.  This caused some
>   confusing behaviour.
>
> 2) The software state is persistent, mark it as such.
>
> 3) Check rfkill in the resume handler.  Both the hard and soft
>   blocked states may change over hibernation.
>
> Signed-off-by: Alan Jenkins <alan-jenkins@...fmail.co.uk>
> Tested-by: Maciej Rutecki <maciej.rutecki@...il.com>

It's this patch is added to -rc4? I one case I have strange behaviour.

Before disable by button:
root@...is:/home/maciek/Desktop# rfkill list
2: hp-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
3: hp-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
16: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
17: phy7: Wireless LAN
        Soft blocked: no
        Hard blocked: no
	
Disable by button:
root@...is:/home/maciek/Desktop# rfkill list
2: hp-wifi: Wireless LAN
        Soft blocked: yes
        Hard blocked: no
3: hp-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
17: phy7: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
	
I do s2disk. After resume from suspend to disk (still disabled by button):
root@...is:/home/maciek/Desktop# rfkill list
2: hp-wifi: Wireless LAN
        Soft blocked: yes
        Hard blocked: no
3: hp-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
18: phy8: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
	
Try enable by button:
root@...is:/home/maciek/Desktop# rfkill list
2: hp-wifi: Wireless LAN
        Soft blocked: yes
        Hard blocked: no
3: hp-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
18: phy8: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
	
Nothing change (LED, wireless and bluetooth don't work). To enable it
I use this script rfkill.sh (I must use rfkill program):

#!/bin/sh
PROGRAM=/usr/local/sbin/rfkill
WIFI=`$PROGRAM list | grep -E 'Wireless|Bluetooth' | cut -d  ':' -f 1`

for DEVICE in $WIFI; do
  echo $DEVICE
  $PROGRAM unblock $DEVICE
done

Then works OK:
root@...is:/home/maciek/Desktop# ./rfkill.sh
2
3
18
root@...is:/home/maciek/Desktop# rfkill list
2: hp-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
3: hp-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
18: phy8: Wireless LAN
        Soft blocked: no
        Hard blocked: no
19: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
	
It's normal behaviour?

-- 
Maciej Rutecki
http://www.maciek.unixy.pl
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