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Re: Building zd1211 drivers fore WiFi dongle

On 24 Jun 2008, at 18:02, John M Cohn wrote:

Mr Codger...
Thanks so much rot the lead.. I was able to get the firmware in there.. but I'm not sure what commands I need to do to bring the link up and configure it. Do you have any guidance there ?

When I do an 'ifconfig wlan0 up' it tells me it cant find the device

Thanks again for your help

John Cohn PhD
IBM Fellow - Systems and Technology Group
tel: 802-769-7676 (t/l 446-), cell: 802-578-0985
asst:Jleigh Howard 802-769-6035 (jleigh@us.ibm.com)
blog: blog.myspace.com/johncohn



          06/23/2008 04:56 PM

John M Cohn/Burlington/IBM@IBMUS
Re: Building zd1211 drivers fore WiFi dongle

I have a wifi dongle working on a slug using Debian Sid. But, I got  
the firmware from

The README says put them in  /lib/firmware/zd1211/

As I said I am using Debian Sid on the NSLU2.

You need to get wpasupplicant and wireless-tools
My /etc/network/interfaces contains either  

allow-hotplug wlan0
iface wlan0 inet dhcp
        wpa_ap_scan     1
        wpa_scan_ssid   1
        wpa_ssid        "WPAnet"
#        #psk "some password"
        wpa_psk         e36f5fbf83d5ba33aa52ff13875af7d8dabb5868aa03889704ef5ab3b0e9f65d
        wpa_proto       WPA2
        wpa_key_mgmt    WPA-PSK
        wpa_pairwise    CCMP
        wpa_group       CCMP
        wpa_auth_alg    OPEN


allow-hotplug wlan0
iface wlan0 inet dhcp
        wpa_scan_ssid 1
        wpa_ssid "WEPNet"
#        #psk "helphelphelps"
        wpa_wep_key0 68656c7068656c7068656c7073
        wpa_key_mgmt NONE
        wpa_group WEP104
        wpa_auth_alg SHARED 
        wpa_wep_tx_keyidx 0

Use wpa_passphrase to generate the wpa_psk string.
I used http://paulschou.com/tools/xlate/  to convert the 13 ascii characters to hex.

you can use:  iwlist wlan0 scan
to see if the dongle finds any networks.

To get the wlan0 associated to the access point I used
ifup -v wlan0

ifconfig gives;

wlan0     Link encap:Ethernet  HWaddr 00:0e:8f:0d:64:ff  
          inet addr:  Bcast:  Mask:
          RX packets:41 errors:0 dropped:0 overruns:0 frame:0
          TX packets:62 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11589 (11.3 KiB)  TX bytes:16301 (15.9 KiB)

wmaster0  Link encap:UNSPEC  HWaddr 00-0E-8F-0D-64-FF-00-00-00-00-00-00-00-00-00-00  
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

iwconfig gives

wlan0     IEEE 802.11  ESSID:"WPAnet"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: 00:1A:59:7B:FA:2E   
          Bit Rate=18 Mb/s   Tx-Power=27 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2352 B   
          Encryption key:782C-6F44-3267-FCD0-ADAE-2854-6FE9-1C38 [3]
          Link Quality=58/100  Signal level:75/100  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

I have experienced some trouble resolving local addresses when the ethernet is not used.
w3m www.google.com works fine, but ping mymac.local (the computer I am ssh'd in with does not )
I also cannot do a ssh root@slug.local from mymac.

I have found a workaround involving running "wpa_cli scan" in /etc/rc.local and 
the same one line bash script in /etc/network/if-up.d/zscan   
But this only works if you install updated drivers using compat-wireless from http://linuxwireless.org/download/compat-wireless-2.6/compat-wireless-2.6.tar.bz2
and you will need to install via apt-get  "linux-headers-2.6.25-2-all-armel" to compile compat-wireless

I have no idea why the above works for me.



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