I own Asus A9rp laptop. It use a zydas usb internal wireless device ( 0b05 ; 171b ).

I'am running kubuntu 2.6.20-15  kernel. As the driver is already integrated in the kernel, but the wlan chip was not detected.

I installed linux kernel, and linux headers .
then i added the id of my wlan chip in zd_usb.c.
i compiler the driver with : "sudo make -C /lib/modules/2.6.20-15-generic/build M=`pwd` modules".
everything ran ok during compilation.
so, i did "sudo depmod -a" and "modprobe zd1211rw"
at this step the driver is loaded. but the chip does not work.
i added zd1211rw in /etc/modules , ad reboot . but chip still not working.

here is dmesg :
"................20.208000] lp: driver loaded but no devices found
>[   20.260000] ieee80211_crypt: registered algorithm 'NULL'
>[   20.276000] ieee80211: 802.11 data/management/control stack, git-1.1.13
>[   20.276000] ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
>[   20.356000] usbcore: registered new interface driver zd1211rw
[   20.420000] Adding 1132540k swap on /dev/disk/by-uuid/b407f354-7190-4a71-aaba-7a41db96d560.  Priority:-1 extents:1 across:1132540k ..........."

when i try "iwconfig" or "ifconfig" there is no wireless device.

what should i try ?

best regards