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Message-Id: <1192971199.9056.19.camel@rigel.esas.fr>
Date: Sun, 21 Oct 2007 14:53:19 +0200
From: Bruno Vetel <bruno.vetel@...il.com>
To: linux-kernel@...r.kernel.org
Subject: Problem with a Driver rt73 in ad-hoc mode betwwen a arm and a pc
Hello
My board is based on a at91rm9200. I try to connect a dongle wifi
DWL-G122 (rt73usb) driver in Ad-Hoc mode with a PC ( dongle linksys
rt73usb but the ubuntu version). I trie also this version on my board
and the cvs versions with the same problem
My kernel is a 2.6.23.1 with little modifications to support my board
which is very closed to the at91rm9200-EK.
In Managed mode, the dongle works perfectly and I ping a router without
any problem
In Ad-hoc mode, on the at91 board the cell is detected but I don't see
any transfer. In debug mode, it seems that beacon and cell are detected
but only after the driver triggers a new scan.
The following commands show you the status.
~ $ iwconfig wlan0
wlan0 IEEE 802.11b ESSID:"essid3"
Mode:Ad-Hoc Frequency:2.422 GHz Cell: 32:C7:99:28:44:17
Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2346 B
Encryption key:off
Link Quality:0 Signal level:0 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
iwlist scanning
...
Cell 04 - Address: 32:C7:99:28:44:17
ESSID:"essid3"
Mode:Ad-Hoc
Channel:3
Frequency:2.422 GHz (Channel 3)
Quality=50/100 Signal level=-58 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Extra:tsf=f78c0070f78c0078
ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:17:9A:76:93:E9
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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)
On the PC :
iwconfig wlan0
wlan0 RT73 WLAN ESSID:"essid3"
Mode:Ad-Hoc Frequency=2.422 GHz Cell: EE:1D:2B:1C:D0:59
Bit Rate=11 Mb/s
RTS thr:off Fragment thr:off
Link Quality=100/100 Signal level:-26 dBm Noise level:-115
dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
and after some times
wlan0 RT73 WLAN ESSID:"essid3"
Mode:Ad-Hoc Frequency=2.422 GHz Cell: 5A:C9:DA:E5:83:31
Bit Rate=11 Mb/s
RTS thr:off Fragment thr:off
Link Quality=0/100 Signal level:-121 dBm Noise level:-115
dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
ifconfig wlan0
wlan0 Lien encap:Ethernet HWaddr 00:18:F8:2C:B8:8D
adr inet6: fe80::218:f8ff:fe2c:b88d/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:15 erreurs:0 :0 overruns:0 frame:0
TX packets:174 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:1805 (1.7 KiB) Octets transmis:15448 (15.0 KiB)
On the board the modules loaded are
rc80211_simple 6720 1
rt73usb 25088 0
rt2x00usb 11872 1 rt73usb
rt2x00lib 21568 2 rt73usb,rt2x00usb
mac80211 179160 3 rc80211_simple,rt2x00usb,rt2x00lib
cfg80211 15624 1 mac80211
ohci_hcd 23572 0
g_ether 27084 0
I added my config file. I'm stuck
I'm stuck here. can anybody help me ?
Thanks
Bruno
View attachment "config" of type "text/plain" (28721 bytes)
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