Maybe this answers your question:
http://forum.wiibrew.org/read.php?9,40
 

Date: Fri, 1 May 2009 23:37:03 +0800
From: nightsuns@gmail.com
To: gc-linux-devel@lists.sourceforge.net
Subject: [Gc-linux-devel] about WII build-in wifi driver

hello everyone:
     could anyone tell me the detail why build-in wifi driver does not works fine, my ndsl ds-linux's build-in wifi works fine..
     waiting for your reply.

nightsuns



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