Install usbutils+libusb+libusb-compat+linux-wireless tazpkgs
Open terminal and post output from

root@slitaz: lsusb

All the recquired packages are already installed, 
Here the result of the lsusb command:

 Bus 001 Device 001: ID ld6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 002: ID 0cf3:1002 Atheros Communications, inc.

And here the result of lsmod command:
Module                  Size  Used by    Not tainted
ar9170usb              36264  0
mac80211              138268  1 ar9170usb
cfg80211               52872  1 mac80211
led_class               3436  1 ar9170usb
yenta_socket           20988  0
rsrc_nonstatic          9136  1 yenta_socket
pcmcia_core            27628  2 yenta_socket,rsrc_nonstatic
snd_ali5451            16108  1
snd_ac97_codec         88736  1 snd_ali5451
ac97_bus                1308  1 snd_ac97_codec
snd_pcm                51780  2 snd_ali5451,snd_ac97_codec
snd_timer              16344  1 snd_pcm
snd                    43584  6 snd_ali5451,snd_ac97_codec,snd_pcm,snd_timer
soundcore               5180  1 snd
snd_page_alloc          7256  1 snd_pcm

When I do iwconfig, no wireless interface is detected....

Have you installed the ar9170usb firmware in /lib/firmware ?

I see no get-ar9170 script in slitaz to autoinstall from wifibox

The links to the firmware are here:

http://wireless.kernel.org/en/users/Drivers/ar9170

http://www.linuxwireless.org/en/users/Drivers/ar9170

Try the official device firmware One Stage first,then Two Stage if necessary.

The open firmware requires compiling which I have no clue how to do.

Download the file,open terminal 

md5sum ar9170.fw

verify it match's the md5sum given by the download link

Copy or move the firmware to /lib/firmware

as root user

modprobe -r ar9170usb  

then

modprobe ar9170usb 

ifconfig wlan0 up

ifconfig

If you still have no wireless adapter showing try the other firmware

If you've done all the steps and still need help post output from

dmesg | grep -i firmware

dmesg | grep -i ar9170usb

I tried with both firmware but no wireless adapter is available,
Here is the result of dmesg:
dmesg | grep -i firmware
[Firmware Bug]: ACPI: ACPI brightness control misses _BQC function
pci 0000:00:0a.0: Firmware left e100 interrupts enabled; disabling

dmesg | grep -i ar9170usb
usbcore: deregistering interface driver ar9170usb
usbcore: registered new interface driver ar9170usb


I've got a usb 1.0 port, but the wireless dongle is 2.0 usb, can't be the problem?

Thanks for your help,

Titou

The kernel version in slitaz-3.0 stable is 2.6.30-6 according to
http://linuxwireless.org/en/users/Drivers/ar9170#ar9170 device driver
the driver requires kernel 2.6.31
Found this out from http://forums.gentoo.org/viewtopic-t-787133-start-0.html
Slitaz made the same mistake as this gentoo user and compiled a module on a kernel version it won't work on.

The driver should work in the current version of cooking which is kernel 2.6.33.4
I verified that cooking linux-wireless tazpkg has the ar9170usb module
WARNING
Don't upgrade from stable to cooking with tazpkg it's broken.
Download cooking.iso and give it a try.

I tried to download the cooking version on the official website but this is the 14 march 2010 version, and this is the kernel 2.6.30.
Where could I find the cooking version with kernel 2.6.33?
Sorry, I'm new to Slitaz and linux!

Sorry, my bad.
Go figure, another assumption gone wrong.
Not your fault, hang in there,your doing great.
I have not tested this,your system could break and not boot.
When you boot into the newer kernel your old modules will no longer load.
They can be updated from cooking later.

If you've installed nvidia or ati non-free video drivers which use kernel module, edit /etc/x11/xorg.conf so your xserver use driver vesa before you do this or you'll boot to text mode. Reboot or kill and restart the xserver to verify the vesa driver works if you had to edit xorg.conf
Make a backup copy of /boot/grub/menu.lst

Download:
http://mirror.slitaz.org/packages/cooking/linux-2.6.33.4.tazpkg
http://mirror.slitaz.org/packages/cooking/linux-wireless-2.6.33.4.tazpkg
Open xterm,become root,go to downloaded tazpkg folder

root@slitaz: tazpkg install linux-2.6.33.4.tazpkg

Xterm should display this info at the end of the install:
GRUB is installed, these tree lines must be in your /boot/grub/menu.lst:
Add this as a second entry below the one pointing to your existing kernel

root@slitaz: tazpkg install linux-wireless-2.6.33.4.tazpkg

Reboot,when you see the grub menu highlight your new kernel entry,hit enter, and keep your fingers crossed.

If the new kernel won't boot use the old kernel and try to figure what is wrong.
Likely it has to do with /boot/grub/menu.lst
This is the best grub site out there:
http://members.iinet.net.au/~herman546/index.html

Once you get into the new kernel follow all the previous steps to bring up the wireless adapter.

I could instaled the new kernel but I've got a new error when I tried to load the ar9170 module, here the message from console:

modprobe ar9170usb
insmod: cannot insert
'/lib/modules/2.6.33.4-slitaz/kernel/net/wireless/cfg80211.ko.gz':
unknown symbol in module
insmod: cannot insert
'/lib/modules/2.6.33.4-slitaz/kernel/drivers/net/wireless/ath/ath.ko.gz':
unknown symbol in module
insmod: cannot insert
'/lib/modules/2.6.33.4-slitaz/kernel/net/mac80211/mac80211.ko.gz':
unknown symbol in module
insmod: cannot insert
'/lib/modules/2.6.33.4-slitaz/kernel/drivers/net/wireless/ath/ar9170/ar9170usb.ko.gz':
unknown symbol in module
modprobe: failed to load module ar9170usb: No such file or directory

Open terminal as root

root@slitaz: depmod -a 

I launched depmod, but when I tried to reload the ar9170usb module nothing changed I've got the same errors.

Good news, I tried with the last new kernel 2.6.34 and this time, the wireless adapter is detected, all seems worked!
Thanks a lot for your help Mojo!

Titou