[kismac] Re: cheap usb network card

  • From: Brad Knowles <brad@xxxxxxxxxxxxxxxxxxx>
  • To: kismac@xxxxxxxxxxxxx
  • Date: Fri, 10 Feb 2006 09:13:19 +0100

At 9:41 PM -0600 2006-02-09, Christoph Koehler wrote:

 Any card that supports g as well, and 100% supports injections? This
 is pretty important.

The problem is that there are some good drivers for 802.11b that are open source (with some support from certain vendors), but the 802.11g stuff is a very closed architecture. Most of what little in the way of open source drivers has been developed has been done the hard way -- by people blinding poking around and seeing what happens.

        And the situation just gets worse with USB devices, as opposed to PC 

Active scanning isn't too hard, since you can piggy-back directly on whatever existing OS-provided drivers are in place. But passive scanning is a bitch, since you have to completely replace any OS-provided driver with your own. And advanced features like supporting re-injections is much, much harder.

Brad Knowles, <brad@xxxxxxxxxxxxxxxxxxx>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

    -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
    Assembly to the Governor, November 11, 1755

 LOPSA member since December 2005.  See <http://www.lopsa.org/>.

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