Bug#527625: marked as done ([iwl3945] Missing wireless channels 100 to 140 (802.11a 5 GHz))
Your message dated Wed, 13 May 2009 10:14:37 -0400
with message-id <4A0AD5CD.4030508@douville.org>
and subject line Can't be fixed in the driver
has caused the Debian Bug report #527625,
regarding [iwl3945] Missing wireless channels 100 to 140 (802.11a 5 GHz)
to be marked as done.
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527625: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=527625
Debian Bug Tracking System
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--- Begin Message ---
Package: linux-2.6
Version: 2.6.29
Severity: normal
--- Please enter the report below this line. ---
Hi
When I load the iwl3945 module, I get this message :
iwl3945: Tunable channels: 11 802.11bg, 13 802.11a channels
According to wikipedia :
http://en.wikipedia.org/wiki/List_of_WLAN_channels
There should be 24 802.11a and 11 802.11bg channels for the US regdom (I
live in Canada).
cat /sys/module/cfg80211/parameters/ieee80211_regdom
US
When I look at the available channels :
sudo iwlist wlan0 channel
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)
I found that channels 100 to 140 are missing from the list. This is half
of the available channels that my card can't tune. Is it normal? Maybe a
bad firmware? I use firmware 15.28.2.8 (debian package version 0.16).
Xavier Douville
--- System information. ---
Architecture: amd64
Kernel: Linux 2.6.29-ex5620
Debian Release: squeeze/sid
990 testing gulus.usherbrooke.ca
990 testing debian.savoirfairelinux.net
500 unstable gulus.usherbrooke.ca
500 unstable debian.savoirfairelinux.net
500 stable security.debian.org
1 experimental debian.savoirfairelinux.net
--- Package information. ---
Package's Depends field is empty.
Package's Recommends field is empty.
Package's Suggests field is empty.
--- End Message ---
--- Begin Message ---
It seems that it's an eeprom problem. All MOW1 (Most Of the World 1)
cards have this eeprom (and so this channel list). It's the way they are
sold by intel, and there is no way to fix this in the driver, so I am
closing this bug.
See the mailing list of the upstream driver :
http://sourceforge.net/mailarchive/message.php?msg_name=02B3067C068D0549A8CCFCB17D4D318B38B4432F%40orsmsx502.amr.corp.intel.com
Xavier
--- End Message ---
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