I found the following on the site :-
dushka.co.uk - many thanks to the site author Icewing for posting the solution.
repeated here as its a registration only article on the site
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Getting the Senao NL-2511CF 802.11b wireless card working on the Zaurus
Sharp Zaurus ROM 3.1
1. Plug in the card, type cardctl ident
2. You should get a bit of info for Socket 0. Copy down the \"product info:\" text (\"WLAN\", \"11Mbps_PC-Card_3.0\", \"ISL37100P\", \"Eval-RevA\" for my card)
3. Edit the file /etc/pcmcia/wlan-ng.conf and add the following...
1. card \"Some description\"
2. version the product info text you copied above
3. bind \"prism2_cs\"
4. Save the file unplug the card and reboot. The card should be recognised when you plug it in. You will then be able to set up networking as normal.
OpenZaurus
1. Plug in the card, type cardctl ident
2. You should get a bit of info for Socket 0. Copy this down as before
3. Copy down the manfid field as well
4. Edit the file /etc/pcmcia/hostap_cs.conf and add the following...
1. card \"Some description\"
2. version the product info text you copied above
3. manfid the two hex numbers plus the comma
4. bind \"hostap_cs\"
5. Save the file and restart.
6. If you have trouble getting WEP working, you will need to add hostap_crypt_wep to /etc/modules
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works fine for me
cheers Icewing !!