CookerSpot: some links about iwl3945

Some documentation for new driver iwl3945 for chipset wifi (as given by lspcidrake -v)
unknown : Intel Corporation|PRO/Wireless 3945ABG Network Connection [NETWORK_OTHER] (vendor:8086 device:4222 subv:103c subd:135c)
using kernel Linux benLapix.eagle-usb.org 2.6.22-3mdv #1 SMP Tue Jul 31 16:25:36 CEST 2007 x86_64 Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz GNU/Linux

some links about iwl3945

http://yohofr.wordpress.com/2007/08/03/utiliser-le-kernel-2622-avec-mandriva-20071-partie-1/ [fr] [ en part ]
http://intellinuxwireless.org/?p=iwlwifi&n=howto-iwlwifi [en] documentation
http://intellinuxwireless.org/tar.php?p=iwlwifi&f=README.iwlwifi&a=iwlwifi-0.1.8.tgz [en] documentation obtained from link CIRL at http://intellinuxwireless.org/?p=iwlwifi&n=Downloads

some tests for iwl3945 - status: scan works

First step : install iwlwifi-3945-ucode package then some commands to check if it can works (well 0.1.1d does not seem that stable... and now ipw3945 has to be recompiled to work with kernel 2.6.22)

ifconfig wlan0_rename up
iwlist wlan0_rename scan
Warning: Driver for device wlan0_rename has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...

wlan0_rename  Scan completed :
	      Cell 01 - Address: 00:16:38:EE:67:4F
	                ESSID:"ALISEA-SF-EE6744"
	                Mode:Master
	                Channel:6
	                Frequency:2.437 GHz
	                Quality=49/100  Signal level=-79 dBm  Noise level=-127 dBm
	                Encryption key:on
	                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
	                          24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
	                          12 Mb/s; 48 Mb/s
	                Extra:tsf=00000097b6f630f6
	      Cell 02 - Address: 00:12:17:B3:55:B5
	                ESSID:"wifibaud"
	                Mode:Master
	                Channel:9
	                Frequency:2.452 GHz
	                Quality=82/100  Signal level=-52 dBm  Noise level=-127 dBm
	                Encryption key:on
	                IE: WPA Version 1
	                    Group Cipher : TKIP 
	                    Pairwise Ciphers (1) : TKIP 
	                    Authentication Suites (1) : PSK  
	                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
	                          24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
	                          12 Mb/s; 48 Mb/s
	                Extra:tsf=000007b4bae745d8
	      Cell 03 - Address: A2:D1:43:A6:1A:C0
	                ESSID:""
	                Mode:Master
	                Channel:12
	                Frequency:2.467 GHz
	                Quality=37/100  Signal level=-87 dBm  Noise level=-127 dBm
	                Encryption key:on
	                IE: IEEE 802.11i/WPA2 Version 1
	                    Group Cipher : CCMP 
	                    Pairwise Ciphers (1) : CCMP 
	                    Authentication Suites (1) : PSK  
	                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
	                          9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
	                          48 Mb/s; 54 Mb/s
	                Extra:tsf=00000032f35ceba9
	      Cell 04 - Address: A2:D1:43:A6:1A:C1
	                ESSID:""
	                Mode:Master
	                Channel:12
	                Frequency:2.467 GHz
	                Quality=31/100  Signal level=-90 dBm  Noise level=-127 dBm
	                Encryption key:on
	                IE: IEEE 802.11i/WPA2 Version 1
	                    Group Cipher : CCMP 
	                    Pairwise Ciphers (1) : CCMP 
	                    Authentication Suites (1) : PSK  
	                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
	                          9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
	                          48 Mb/s; 54 Mb/s
	                Extra:tsf=00000032f35cef6a
	      Cell 05 - Address: A2:D1:43:A6:1A:C3
	                ESSID:"freephonie"
	                Mode:Master
	                Channel:12
	                Frequency:2.467 GHz
	                Quality=31/100  Signal level=-90 dBm  Noise level=-127 dBm
	                Encryption key:on
	                IE: WPA Version 1
	                    Group Cipher : TKIP 
	                    Pairwise Ciphers (1) : TKIP 
	                    Authentication Suites (1) : 802.1X  
	                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
	                          9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
	                          48 Mb/s; 54 Mb/s
	                Extra:tsf=00000032f35cf913
	      Cell 06 - Address: A2:D1:43:A6:1A:C2
	                ESSID:""
	                Mode:Master
	                Channel:12
	                Frequency:2.467 GHz
	                Quality=33/100  Signal level=-89 dBm  Noise level=-127 dBm
	                Encryption key:on
	                IE: IEEE 802.11i/WPA2 Version 1
	                    Group Cipher : CCMP 
	                    Pairwise Ciphers (1) : CCMP 
	                    Authentication Suites (1) : PSK  
	                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
	                          9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
	                          48 Mb/s; 54 Mb/s
	                Extra:tsf=00000032f35cf470

Relevant result of ifconfig -a : (I removed eth0 and lo interfaces)

eth2      Link encap:UNSPEC  HWaddr 00-18-DE-33-C9-22-00-00-00-00-00-00-00-00-00-00  
	      BROADCAST MULTICAST  MTU:1500  Metric:1
	      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
	      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
	      collisions:0 lg file transmission:1000 
	      RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

wlan0_rename Link encap:Ethernet  HWaddr 00:18:DE:33:C9:22  
	      BROADCAST MULTICAST  MTU:1500  Metric:1
	      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
	      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
	      collisions:0 lg file transmission:1000 
	      RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

=> eth2 should not be remaining and the name should be wlan0 (maybe a problem with udev ? according to yoho's comment : udev renames wmaster0 as eth2 then wlan0 as eth2, hence the kernel suggesting to use wlan0_rename to avoid the conflict).

udevcontrol log_priority=debug # to enable udev debugging, then unload iwl3945 and modprobe iwl3945 to see debug log for udev
modprobe iwl3945 debug=0x43fff # to see debug at loading the driver

The result of modprobe iwl3945 in /var/log/messages :

iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 0.1.1d
iwl3945: Copyright(c) 2003-2007 Intel Corporation
ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 16 (level, low) -> IRQ 16
iwl3945: Detected Intel PRO/Wireless 3945ABG Network Connection
iwl3945: Unhandled INTA bits 0x04000000
iwl3945: Disabled INTA bits 0x04000000 were pending
iwl3945:    with FH_INT = 0x00000000
iwl3945: Channel 14 [2.4GHz] is Tx only -- skipping.
iwl3945: Channel 183 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 184 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 185 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 187 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 188 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 189 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 192 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 196 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 7 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 8 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 11 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 12 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 16 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 145 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 149 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 153 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 157 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 161 [5.2GHz] is Tx only -- skipping.
iwl3945: Channel 165 [5.2GHz] is Tx only -- skipping.
iwl3945: Tunable channels: 13 802.11bg, 23 802.11a channels

# iwlist wlan0_rename scan # strange error :/ I'll have to upgrade wireless-tools-28-3mdv2008.0
Warning: Driver for device wlan0_rename has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...
=> It works after doing ifconfig wlan0_rename up (see above)

some other tests - status: does not associate

check http://www.bughost.org/bugzilla/show_bug.cgi?id=1210
I'm using WPA TKIP/PSK encryption, currently not working (wpa_supplicant-0.5.8-1mdv2008.0), I copied /etc/sysconfig/network-scripts/ifcfg-eth2 to /etc/sysconfig/network-scripts/ifcfg-wlan0_rename (changing the DEVICE=eth2 to wlan0_rename of course)

ifup wlan0_rename
Wireless device wlan0_rename is configured with a roaming daemon but isn't associated
Determining IP information for wlan0_rename... failed; no link present.  Check cable?

conseils de blino

tu aura des restes de l'ancienne interface avec l'adresse MAC dans /etc/udev/rules.d/61-net_config.rules => j'ai mis wlan0_rename
la version 1.2.2 de ipw3945 fonctionne en déchargeant le pilote par modprobe -r iwl3945 (ajouter un blacklist ipw3945 et un blacklist iwl3945 à /etc/modprobe.conf), le prendre à partir de http://ipw3945.sourceforge.net/#downloads puis make ; sudo make install
ipw3945d (le "regulatory daemon", en clair un blob propriétaire :/) est arrêté automatiquement au modprobe -r ipw3945 (avec le paquet ipw3945d-1.7.22-3mdv2007.1)
peut-être besoin d'une nouvelle version de wpa_suplicant pour que iwl3945 fonctionne en WPA TKIP PSK ?

CookerSpot : DocWifiIwl3945

some links about iwl3945

some tests for iwl3945 - status: scan works

some other tests - status: does not associate

conseils de blino