Re: eth2: unknown interface: No such device

Fabio Antonini writes: 

> Oliver Kurth writes:  
> 
>> On Mon, Jul 28, 2003 at 02:14:28PM +0200, Fabio Antonini wrote:
>>> Hello all
>>> I'testing the at76c503 driver on a WUSB11 v.2.6 connected (via USB) on a 
>>> PPC based board. The setup is the following:   
>>> 
>>> the file /etc/network/interfaces contain the following lines to set the 
>>> wireless network interface:   
>>> 
>>> auto eth2
>>> iface eth2 inet static
>> 
>>> 
>>> If I try to configure eth2 by hand with iwconfig
>>> I receive the following message
>>> eth2:   no such device
>>> The eth2 interface is unknown. Probably I haven't set up correctly the 
>>> eth2 and this is a "absolute beginner" question and this isn't the most 
>>> right place where to ask for help about this item, but I hope that 
>>> anyone could help me. Any suggest will be appreciated.
>>> Thank you for your attention.
>> 
>> The device gets the name wlan%d, ie. the first one gets the name wlan0 - 
>> not
>> eth%d.  
>> 
>> Unless you used the 'netdev_name' module parameter.  
>> 
>> Greetings,
>> oliver  
>> 
>> -- 
>>   .''`.
>>  : :' :    Oliver Kurth [email protected]
>>  `. `'           Debian GNU/Linux maintainer - www.debian.org
>>    `-
> 
> The problem appears also with wlan0. I've changed everywhere eth2 with 
> wlan0 but the problem is present yet. Can be a problem that my board has 
> already two ethernet devices configured??? how many network adapter can 
> the linux handle??? is a silly question??
> greetings
> Fabio  
> 
> Fabio Antonini
> Kasko Networks S.r.l.
> Via Patini 46 67100 L'Aquila - Italy
> Ph/Fax +3986265562
> e-mail: [email protected] 
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> Atmel-wlan-usb mailing list
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Okay now it works: the wlan0 interface has been recognized.
but some problem still arises.
if I get the command iwconfig to configure I read strange values for the bit 
rate and the channel!!
take a look: 

sh-2.04# iwconfig wlan0 channel 6 mode ad-hoc essid linksys
sh-2.04# iwconfig wlan0
wlan0     IEEE 802.11-DS  ESSID:"linksys"  Nickname:"okuwlan"
         Mode:Ad-Hoc  Channel:2.11367e-314  Cell: 00:00:00:00:00:00
         Bit Rate:1.89593e-77Mb/s
         RTS thr=1536 B   Fragment thr=1536 B
         Encryption key:off
         Power Management:off
         Link Quality:0  Signal level:50  Noise level:0
         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
         Tx excessive retries:0  Invalid misc:0   Missed beacon:0 

sh-2.04# cat /proc/net/wireless
Inter-| sta-|   Quality        |   Discarded packets               | Missed
face | tus | link level noise |  nwid  crypt   frag  retry   misc | beacon
wlan0: 0000    0    50     0        0      0      0      0      0        0
sh-2.04# cat /proc/bus/usb/devices
T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB PHCI Root Hub
S:  SerialNumber=c37bb400
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms
T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=fe(app. ) Sub=01 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=077b ProdID=2219 Rev= 1.00
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=ff Driver=at76c503-rfmd
E:  Ad=85(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
sh-2.04# s 

The good news is that at76c503-rfmd driver has been detected the ATmel chip 
inside the Lynksys WUSB11 network adapter ( Vendor=077b ProdID=2219).
How can I set the IP address for this interface??
than you a lot!
fabio 

Fabio Antonini
Kasko Networks S.r.l.
Via Patini 46 67100 L'Aquila - Italy
Ph/Fax +3986265562
e-mail: [email protected]