Difference between revisions of "Intel PRO/Wireless 3945ABG Mini-PCI Express Adapter"

From ThinkWiki
Jump to: navigation, search
m (Support)
(Hardware switch)
Line 27: Line 27:
 
== Hardware switch ==
 
== Hardware switch ==
  
Some ThinkPads have a hardware switch that must be in the '''on''' position for the radio to work, regardless of driver state:
+
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)]]
 
[[Image:Wireless-switch.png|(ThinkPad R60 radio switch in the ON position)]]
  
'''If''' it is '''off''', you might encounter following Log-Message on Startup:
+
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:
 
   ipw3945: Radio Frequency Kill Switch is On:
 
   Kill switch must be turned off for wireless networking to work.
 
   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 ==
 
== ThinkPads this card may be found in ==

Revision as of 05:12, 15 June 2008

This is a Mini-PCI Express WiFi Adapter

Features

  • Chipset: Intel WM3945AG
  • IEEE Standards: 802.11a, 802.11b, 802.11g
  • PCI ID: 8086:4227

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....

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.

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:

(ThinkPad R60 radio switch in the ON position)

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