Iwl3945

2008-12-04T12:57:03Z

Isotopp:

The '''iwl3945''' driver is part of the [[iwlwifi]] project to provide support for the [[Intel PRO/Wireless 3945ABG Mini-PCI Express Adapter]]. The driver is included in recent kernels 2.6.24 and needs a binary firmware image, without which nothing will work, but nothing will complain, either.

For the firmware:
* Debian Sid: the package is {{path|firmware-iwlwifi}}. You will need to append {{path|non-free}} to the {{path|deb http://foo sid ...}} line in your {{path|/etc/apt/sources.list}}.

For Europe:
* Add /etc/modprobe.d/iwl3945-fix with the following content: "options cfg80211 ieee80211_regdom=EU". This will make channels 12 and 13 available. If an access point you know is there is not shown with "iwlist wlan0 scan" and you are in Europe, then this option may be missing.

== See also ==
* [[Ipw3945]]

[[Category:Iwlwifi]]

Intel PRO/Wireless 3945ABG Mini-PCI Express Adapter

2008-12-04T12:54:12Z

Isotopp: regulative domain hack added

__NOTOC__
{| width="100%"
|style="vertical-align:top" |
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">

This is a Mini-PCI Express WiFi Adapter

== Features ==
* Chipset: Intel WM3945AG
* IEEE Standards: 802.11a, 802.11b, 802.11g
* PCI ID: 8086:4227
</div>
|style="vertical-align:top" |
[[image:3945abg.jpg|Mini-PCI WiFi Adapter]]
|}
== IBM Partnumbers ==
* 41A4068

{{NOTE| Only the IBM Parts will work, any other parts will give an 1802 error on Post because the sub-vendor PCI ID is different, see [[Problem with unauthorized MiniPCI network card]] for more details}}

== Also known (in IBM literature) as.... ==
* From [http://www.ibm.com/common/ssi/rep_ca/8/897/ENUS106-068/ENUS106-068.PDF announcement letter 106-068], 'Intel PRO/Wireless 3945ABG8 wireless connection'

== Support ==
* Linux has the [[ipw3945]] and the [[iwl3945]] drivers. iwl3945 should be used as it is newer and actively developed. Also, Kernel 2.6.24 drops the old wireless-stack so ipw3945 won't compile.
* If you are not in the US, more Wifi channels are available (EU: 13 instead of 11). If you cannot see your Wifi, but you know it is there, check if it is on Channel 12 or 13.
** To fix, create /etc/modprobe.d/iwl3945-fix and add the following line: "options cfg80211 ieee80211_regdom=EU". Reload to the driver for the change to become active: "modprobe -r iwl3945", then "modprobe iwl3945".

== Hardware switch ==

Operating a radio transmitter is not permitted in aircraft, and there are times where security requires that your wireless connection be shut down. Some ThinkPads have a hardware switch that disables the wireless network. Here it is on the '''on''' position:

[[Image:Wireless-switch.png|(ThinkPad R60 radio switch in the ON position)]]

''Note:'' the switch is somewhat hard to locate; look for it at the left front edge of the device.

To be certain that your wireless connection is not transmitting, turn the switch '''off'''. Just remember to turn it back on when you once again need wireless access. If the switch is '''off''', you might encounter following Log-Message on Startup:
ipw3945: Radio Frequency Kill Switch is On:
Kill switch must be turned off for wireless networking to work.

Also, when you try to activate (iwconfig) your wireless connection with the switch '''off''' you may see the error,
Error for wireless request "Set Mode" (8B06)
The number 8B06 does not matter. It merely represents the wireless mode (auto, ad-hoc, managed, master), none of which will work with the wireless switch '''off'''.

== ThinkPads this card may be found in ==
* {{T43}}, {{T43p}} as an external ExpressCard
* {{R60}}
* {{T60}}, {{T60p}}, {{T61}}
* {{X60}}, {{X60s}}, {{X60_Tablet}}, {{X61}}, {{X61s}}, {{X61_Tablet}}
* {{R61i}}, {{Z61e}}, {{Z61m}}, {{Z61t}}, {{Z61p}}
* [[N100|Lenovo 300]]

[[Category:Components]]

ThinkWiki - User contributions [en]

Iwl3945

Intel PRO/Wireless 3945ABG Mini-PCI Express Adapter