Activating wireless channels 12 and 13 with iwl3945

Natanji · 2010-01-15 11:31:52

Hello everyone,
I follow the descriptions in the Wiki to activate wireless channels 12 and 13 with iwl3945 which I'm running.
It says: "To make iwl3945 scan for all channels, add "options cfg80211 ieee80211_regdom=EU" to /etc/modprobe.d/options. With "iwlist f" you can check which channels are allowed."

However, this didn't work. I assumed that this was because the config file was moved from options to modprobe.conf, so I added it there. My modprobe.conf looks like this:

#
# /etc/modprobe.d/modprobe.conf (for v2.6 kernels)
#
options i915 modeset=1
options snd_hda_intel index=0
options cfg80211 ieee80211_regdom="EU"

Alas, everything should work now, but running iwlist f gives the following output:

lo        no frequency information.

eth0      no frequency information.

wlan0     24 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 36 : 5.18 GHz
          Channel 40 : 5.2 GHz
          Channel 44 : 5.22 GHz
          Channel 48 : 5.24 GHz
          Channel 52 : 5.26 GHz
          Channel 56 : 5.28 GHz
          Channel 60 : 5.3 GHz
          Channel 64 : 5.32 GHz
          Channel 149 : 5.745 GHz
          Channel 153 : 5.765 GHz
          Channel 157 : 5.785 GHz
          Channel 161 : 5.805 GHz
          Channel 165 : 5.825 GHz
          Current Frequency:2.412 GHz (Channel 1)

(And yes, I restarted after adding that entry to modprobe.conf, several times).

What's wrong, why are channels 12 and 13 not showing up?

R00KIE · 2010-01-15 14:49:54

I think you should install crda, tell it where you live (configure it in /etc/conf.d/wireless-regdom) and add crda to your daemons array.

Natanji · 2010-01-20 01:09:51

Thanks for that, but even after doing so and rebooting, I get the same output as before: the channels 12 and 13 don't show up, although they should (here in Germany).

Natanji · 2010-01-26 20:29:15

*bump* Still not working...

R00KIE · 2010-01-27 01:03:40

Try to edit /etc/conf.d/wireless-regdom and uncomment the line #WIRELESS_REGDOM="DE"

Natanji · 2010-02-03 09:35:38

I did that from the start, and wireless-regdom is also successfully starting on boot. But it still won't work.

Last edited by Natanji (2010-02-03 09:36:00)

raf_kig · 2010-02-03 10:58:46

can you paste the output of

dmesg | grep -i regulatory

just for reference, mine looks like that:

cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
cfg80211: Regulatory domain changed to country: DE

Natanji · 2010-02-06 15:35:21

I only get the first of the tree lines you posted. Damn.
Also, if I dmesg | grep -i cfg80211, I get:

cfg80211: Calling CRDA to update world regulatory domain
cfg80211: Calling CRDA for country: EU

However, on tty1, I get "Setting wireless regulatory domain: DE [DONE]".

Last edited by Natanji (2010-02-06 15:39:52)

raf_kig · 2010-02-06 19:42:50

ok, let's give this a try

1) remove the line

options cfg80211 ieee80211_regdom="EU"

from your modprobe.conf
2) make sure you have uncommented the appropriate entry in /etc/conf.d/wireless-regdom (EU ist not a valid entry)
3) add wireless-regdom to your DAEMONS array in /etc/rc.conf

Give that a try and if it still isn't working repost the relevant dmesg output after a clean boot.

Regards,

raf

Last edited by raf_kig (2010-02-06 19:43:12)

Natanji · 2010-02-07 01:22:59

dmesg | grep -i cfg80211
cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
cfg80211: Calling CRDA for country: DE
cfg80211: Regulatory domain changed to country: DE

However, iwlist f still shows:

wlan0     19 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 36 : 5.18 GHz
          Channel 40 : 5.2 GHz
          Channel 44 : 5.22 GHz
          Channel 48 : 5.24 GHz
          Channel 52 : 5.26 GHz
          Channel 56 : 5.28 GHz
          Channel 60 : 5.3 GHz
          Channel 64 : 5.32 GHz
          Current Frequency:2.457 GHz (Channel 10)

Natanji · 2010-02-11 20:40:27

*bump*

Arch Linux

#1 2010-01-15 11:31:52

Activating wireless channels 12 and 13 with iwl3945

#2 2010-01-15 14:49:54

Re: Activating wireless channels 12 and 13 with iwl3945

#3 2010-01-20 01:09:51

Re: Activating wireless channels 12 and 13 with iwl3945

#4 2010-01-26 20:29:15

Re: Activating wireless channels 12 and 13 with iwl3945

#5 2010-01-27 01:03:40

Re: Activating wireless channels 12 and 13 with iwl3945

#6 2010-02-03 09:35:38

Re: Activating wireless channels 12 and 13 with iwl3945

#7 2010-02-03 10:58:46

Re: Activating wireless channels 12 and 13 with iwl3945

#8 2010-02-06 15:35:21

Re: Activating wireless channels 12 and 13 with iwl3945

#9 2010-02-06 19:42:50

Re: Activating wireless channels 12 and 13 with iwl3945

#10 2010-02-07 01:22:59

Re: Activating wireless channels 12 and 13 with iwl3945

#11 2010-02-11 20:40:27

Re: Activating wireless channels 12 and 13 with iwl3945

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