iwlagn / wpa_supplicant issue

Fabio Coatti fabio.coatti
Mon Apr 18 12:52:49 PDT 2011

2011/4/18 Jouni Malinen <j at w1.fi>:
> On Sun, Apr 17, 2011 at 10:20:58AM +0200, Fabio Coatti wrote:
>> Yes, I see that the interface is down, but no 'ifconfig wlan0 up' nor
>> 'ip link set wlan0 up' works.
>> the interface remains down.
> If those commands fail to bring the interface up, wpa_supplicant will
> not be able to do it either. What kind of error message do you get from
> either of those commands? This sounds like a rfkill issue, i.e., the
> system is likely configured to not allow WLAN to be enabled.

No error messages in either case, only dmesg notification, the usual
ADDRCONF(NETDEV_UP): wlan0: link is not ready
rfkill is off, i.e. wireless hardware is on (blue light on my laptop).
But in any case, if this is a rfkill issue, how I can explain that
simply issuing  a 'iwlist scan' the interface goes up and everything
then works just fine?


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