Difference between revisions of "ThinkPad 11a/b/g/n Wireless LAN Mini Express Adapter"
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=== ThinkPad 11a/b/g/n Wireless LAN Mini Express Adapter === | === ThinkPad 11a/b/g/n Wireless LAN Mini Express Adapter === | ||
| − | This is a WiFi Adapter that is installed in a Mini-PCI Express slot | + | This is a WiFi Adapter that is installed in a Mini-PCI Express slot IBM partnumber 42T0825 [http://www-307.ibm.com/pc/support/site.wss/MIGR-64222.html] |
=== Features === | === Features === | ||
| − | * Chipset: Atheros AR5008 | + | * Chipset: Atheros AR5418/AR5008 |
* Integrated Mac Processor and Radio Chip: Atheros, unknown model | * Integrated Mac Processor and Radio Chip: Atheros, unknown model | ||
* IEEE Standards: 802.11a, 802.11b, 802.11g, 802.11n (draft) | * IEEE Standards: 802.11a, 802.11b, 802.11g, 802.11n (draft) | ||
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| − | === | + | === Identification === |
| − | + | To determine the chipset your car uses, issue the following commands: | |
# update-pciids | # update-pciids | ||
| − | # lspci| | + | # lspci | egrep -i 'network|atheros|wireless' |
03:00.0 Network controller: Atheros Communications, Inc. AR5418 802.11a/b/g/n Wireless PCI Express Adapter (rev 01) | 03:00.0 Network controller: Atheros Communications, Inc. AR5418 802.11a/b/g/n Wireless PCI Express Adapter (rev 01) | ||
| − | If you get a different | + | If you get a different something different than above despite having the most current PCI IDs, please report it here! |
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=== Linux WiFi driver === | === Linux WiFi driver === | ||
Revision as of 08:35, 27 September 2007
ThinkPad 11a/b/g/n Wireless LAN Mini Express AdapterThis is a WiFi Adapter that is installed in a Mini-PCI Express slot IBM partnumber 42T0825 [1] Features
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Identification
To determine the chipset your car uses, issue the following commands:
# update-pciids # lspci | egrep -i 'network|atheros|wireless' 03:00.0 Network controller: Atheros Communications, Inc. AR5418 802.11a/b/g/n Wireless PCI Express Adapter (rev 01)
If you get a different something different than above despite having the most current PCI IDs, please report it here!
Linux WiFi driver
For native Linux support, the "madwifi" driver can be used. Here's the latest word regarding work on supporting the ar5008/ar5418 chipset:
* milestone changed from version 0.9.x - progressive release candidate phase to version 0.9.4. FYI: the madwifi-hal-0.9.30.13 branch has been merged to trunk (and the branch has been removed). If you don't want to wait until the next release (v0.9.4), you could go with a snapshot or checkout from trunk - just make sure that your code is >= r2360.
There is a howto, which describes the procedure for getting the snapshot to work.
There is an old ticket for this card at madwifi, #1001.
There is an new ticket for this card at madwifi-branch, #1243.
Using the Windows Driver in Linux
If you have a weak stomach for pre-release software, you can always use "ndiswrapper" (>= 1.29) to wrap the Windows driver supplied by Lenovo. This isn't as bad as you think. It does work like a charm, but you may have problems if you're using a 64 bit kernel. Here's the Howto.
Problems/Bugs?
A number of folks have reported getting errors while using recent versions of madwifi with Feisty on the T60p with the AR5418. When the NMI is received, the wifi dies. If anyone knows the solution, please elaborate.
Uhhuh. NMI received for unknown reason b0 on CPU 0. You have some hardware problem, likely on the PCI bus. Dazed and confused, but trying to continue
wifi0: rx FIFO overrun; resetting wifi0: rx FIFO overrun; resetting wifi0: rx FIFO overrun; resetting
See the following threads and bug reports: [2] [3] [4] [5] [6]
Hardware switch
Some ThinkPads have a hardware switch that must be in the on position for the radio to work, regardless of driver state:
In addition to hard-switching the wireless card, the switch also generates an acpi event on transition from hi->lo and vice versa. It is however the same event in both directions.
