Debian startup problem

Hi,

I got a debian specific problem with the at76c503 driver.
It somehow seems that the correct parameters aren't set on bootup. I 
get this:
$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11-DS  ESSID:"okuwlan"  Nickname:"okuwlan"
          Mode:Ad-Hoc  Channel:10  Cell: 00:00:00:00:00:00
          Bit Rate:11Mb/s
          RTS thr=1536 B   Fragment thr=1536 B
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  invalid crypt:0  invalid misc:0

My /etc/network/interfaces lokks like this:
----------
auto lo
iface lo inet loopback
auto wlan0
iface wlan0 inet static
        address 192.168.0.3
        network 192.168.0.0
        netmask 255.255.255.0
        broadcast 192.168.0.255
        gateway 192.168.0.1
        wireless_mode managed
        wireless_essid XXXXXXXXXX
        wireless_channel 10
        wireless_nick nickname
auto eth0
iface eth0 inet static
        address 192.168.1.254
        network 192.168.1.0
        netmask 255.255.255.0
        broadcast 192.168.1.255
----------

If I after bootup makes a:
ifup wlan0
then everything works. It does seem that something goes wrong during 
bootup, but I can't find the traces in dmesg or /var/log/messages.
Any good ideas?

Regards,
-- 
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