Re: Why wireless is disable by radio killswitch?

[Dan Williams <dcbw redhat com>]

On Fri, 2009-05-22 at 17:40 +0800, Bin Li wrote:
> Hi,
> 
>  I've use NM 0.7.0.r4359, and from the lshal I could found "killswitch".
> $ lshal --version
> lshal version 0.5.12
> 
> udi = '/org/freedesktop/Hal/devices/dell_wlan_switch'
>   info.capabilities = {'killswitch'} (string list)
>   info.category = 'killswitch'  (string)
>   info.interfaces = {'org.freedesktop.Hal.Device.KillSwitch'} (string list)
>   info.parent = '/org/freedesktop/Hal/devices/platform_dcdbas'  (string)
>   info.product = 'Dell WLAN Switch'  (string)
>   info.subsystem = 'unknown'  (string)
>   info.udi = '/org/freedesktop/Hal/devices/dell_wlan_switch'  (string)
>   killswitch.access_method = 'dell'  (string)
>   killswitch.type = 'wlan'  (string)
>   org.freedesktop.Hal.Device.KillSwitch.method_argnames = {'power',
> ''} (string list)
>   org.freedesktop.Hal.Device.KillSwitch.method_execpaths =
> {'hal-system-killswitch-set-power', 'hal-system-killswitch-get-power'}
> (string list)
>   org.freedesktop.Hal.Device.KillSwitch.method_names = {'SetPower',
> 'GetPower'} (string list)
>   org.freedesktop.Hal.Device.KillSwitch.method_signatures = {'b', ''}
> (string list)
> 
> But when I run "NetowrkManager --no-daemon" with root permission, it prompt:
> 
> NetworkManager: <info>  eth1: driver is 'wl'.
> NetworkManager: <info>  eth1: driver does not support SSID scans
> (scan_capa 0x00).
> NetworkManager: <info>  Found new 802.11 WiFi device 'eth1'.
> NetworkManager: <info>  (eth1): exported as
> /org/freedesktop/Hal/devices/net_00_22_5f_53_60_01
> NetworkManager: <info>  Wireless now disabled by radio killswitch
> 
> And I've check the switch is on, the wireless led is light.
> 
> When I use the wireless-tools, the iwlist and iwconfig, the wireless
> card could be configured successfully, and works fine.
> 
> Any ideas?

What have you got in /sys/class/rfkill?  What's the output of both:

cat /sys/class/rfkill/*/type
cat /sys/class/rfkill/*/state

Next, we need to ask HAL what its killswitch state is:

dbus-send --system --print-reply --dest=org.freedesktop.Hal /org/freedesktop/Hal/devices/dell_wlan_switch org.freedesktop.Hal.Device.KillSwitch.GetPower

If that returns 'int32 0', then HAL believes your killswitch to be
turned on, and your radio should be disabled.  That would be a HAL bug
then.

Dan