Reg: Access point association gets down with in 5min for MARVELL_SDIO_8688_WLAN_CARD
praveen
praveen at e-consystems.com
Wed Aug 5 00:35:11 EDT 2009
On Monday 27 July 2009 10:26:18 am praveen wrote:
> On Friday 24 July 2009 05:06:33 pm praveen wrote:
> > Hi All,
> >
> > I am using MARVELL_SDIO_8688_WLAN_CARD with PXA270 based reference board.
> > I used the patch available with this list for 8688 card.
> >
> > After inserting the modules I get the following debug messages
> >
> > [root at REGULUS /tmp]#insmod libertas.ko
> > [root at REGULUS /tmp]#
> > [root at REGULUS /tmp]#insmod libertas_sdio.ko
> > libertas_sdio: Libertas SDIO driver
> > libertas_sdio: Copyright Pierre Ossman
> > libertas: 00:1a:6b:9f:37:36, fw 10.38.1p25, cap 0x00000303
> > libertas: PREP_CMD: command 0x0022 failed: 2
> > libertas: eth1: Marvell WLAN 802.11 adapter
> > [root at REGULUS /tmp]#
> > [root at REGULUS /tmp]#
> > [root at REGULUS /tmp]#
> >
> > Scanning the access point using iwlist gives following prints. In this
> > all the channel and bit rates are wrong. I don't know why?
> >
> > [root at REGULUS /tmp]#./iwlist eth1 scan
> > Warning: Driver for device eth1 has been compiled with version 22
> > of Wireless Extension, while this program supports up to version 17.
> > Some things may be broken...
> >
> > eth1 Scan completed :
> > Cell 01 - Address: 00:1B:2F:4B:42:16
> > ESSID:"econAP2"
> > Mode:Managed
> > Channel:-2.82593e-07
> > Quality=70/100 Signal level=-75 dBm Noise level=-92
> > dBm Encryption key:on
> > Bit Rate:5.29981e-315 Mb/s
> > Bit Rate:5.30499e-315 Mb/s
> > Bit Rate:5.31211e-315 Mb/s
> > Bit Rate:5.31729e-315 Mb/s
> > Bit Rate:5.31276e-315 Mb/s
> > Bit Rate:5.31794e-315 Mb/s
> > Bit Rate:5.32312e-315 Mb/s
> > Bit Rate:5.32636e-315 Mb/s
> > Bit Rate:5.316e-315 Mb/s
> > Bit Rate:5.32118e-315 Mb/s
> > Bit Rate:5.3283e-315 Mb/s
> > Bit Rate:5.32927e-315 Mb/s
> > Cell 02 - Address: 00:11:95:76:8F:60
> > ESSID:"econAP1"
> > Mode:Managed
> > Channel:2.05102e-314
> > Quality=100/100 Signal level=-97 dBm Noise
> > level=-92 dBm Encryption key:on
> > Bit Rate:5.29981e-315 Mb/s
> > Bit Rate:5.30499e-315 Mb/s
> > Bit Rate:5.31211e-315 Mb/s
> > Bit Rate:5.31729e-315 Mb/s
> > Bit Rate:5.31276e-315 Mb/s
> > Bit Rate:5.31794e-315 Mb/s
> > Bit Rate:5.32312e-315 Mb/s
> > Bit Rate:5.32636e-315 Mb/s
> > Bit Rate:5.316e-315 Mb/s
> > Bit Rate:5.32118e-315 Mb/s
> > Bit Rate:5.3283e-315 Mb/s
> > Bit Rate:5.32927e-315 Mb/s
> > Cell 03 - Address: 00:1B:57:F1:24:99
> > ESSID:"UTStarcom"
> > Mode:Managed
> > Channel:3.03586e-315
> > Quality=100/100 Signal level=-98 dBm Noise
> > level=-92 dBm Encryption key:off
> > Bit Rate:5.29981e-315 Mb/s
> > Bit Rate:5.30499e-315 Mb/s
> > Bit Rate:5.31211e-315 Mb/s
> > Bit Rate:5.31729e-315 Mb/s
> > Bit Rate:5.32118e-315 Mb/s
> > Bit Rate:5.32312e-315 Mb/s
> > Bit Rate:5.32636e-315 Mb/s
> > Bit Rate:5.32927e-315 Mb/s
> > Bit Rate:5.31276e-315 Mb/s
> > Bit Rate:5.316e-315 Mb/s
> > Bit Rate:5.31794e-315 Mb/s
> > Bit Rate:5.3283e-315 Mb/s
> >
> >
> > I established the link with one of my access point using following
> > commands ifconfig eth1 192.168.6.165 up
> > ./iwconfig eth1 mode 2
> > ./iwconfig eth1 essid "econAP1"
> > ./iwconfig eth1 enc "s:ca188"
> > ./iwconfig eth1 key 0123456789
> > route add default gw 192.168.6.1 eth1
> >
> >
> > After giving above commands my board get associated with the access
> > point. See the output of below command
> >
> > [root at REGULUS /tmp]#./iwconfig eth1
> > Warning: Driver for device eth1 has been compiled with version 22
> > of Wireless Extension, while this program supports up to version 17.
> > Some things may be broken...
> >
> > eth1 IEEE 802.11b/g ESSID:"econAP1"
> > Mode:Managed Channel:-2.06365e+267 Access Point:
> > 00:11:95:76:8F:60 Bit Rate:1.63394e-312 2b/s Tx-Power=15 dBm
> > Retry limit:8 RTS thr=2347 B Fragment thr=2346 B
> > Encryption key:0123-4567-89 Security mode:open
> > Power Management:off
> > Link Quality=12/100 Signal level=-89 dBm Noise level=-93 dBm
> > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:4496
> > Tx excessive retries:6 Invalid misc:16 Missed beacon:0
> >
> >
> > But with in 5min board lost the association with the access point. Please
> > see the output of iwconfig once after association get lost
> >
> > [root at REGULUS /tmp]#./iwconfig eth1
> > Warning: Driver for device eth1 has been compiled with version 22
> > of Wireless Extension, while this program supports up to version 17.
> > Some things may be broken...
> >
> > eth1 IEEE 802.11b/g ESSID:""
> > Mode:Managed Channel:-2.06365e+267 Access Point:
> > 00:00:00:00:00:00 Bit Rate:2.27054e-312 2b/s Tx-Power=15 dBm
> > Retry limit:8 RTS thr=2347 B Fragment thr=2346 B
> > Encryption key:0123-4567-89 Security mode:open
> > Power Management:off
> > Link Quality:0 Signal level:0 Noise level:0
> > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:4496
> > Tx excessive retries:0 Invalid misc:16 Missed beacon:0
> >
> > Please give reply for the above issue.
>
> Hi All,
>
> Can any one help me to solve the above mentioned issue?
Hi All,
I got some improvements in my issue.
The random bitrate while scanning using iwlist command is due to the
application error. Once I used wirelesstools-version29 this error get solved.
Now while scanning I am getting correct bitrates.
Now the issue is the association get lost within 5 or 10 min and it is not
automatically re-associate with the access point. I got automatic
re-association patch from this list in the below link.
http://lists.infradead.org/pipermail/libertas-dev/2007-October/000682.html
I applied this patch to kernel linux-2.6.25. Actually some structure are
changed in 2.6.25 kernel. Manually I applied the patch according to 2.6.25
kernel.
Now if I lost the association with access point it get automatically
re-associated.
while testing the board, with in 15hours the association get lost and
re-associated for more than 130 times. From the debug message the
EVENT: deauthenticated makes the association to loss.
Is I am missing something, so that the association get lost for such much
time?
Please update why the association get lost frequently?
--
Thanks and regards,
Praveen
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