The wifi has been a problem off and on for a long while now. It does not appear to be hardware related... something messes it up every so often. There have been different suggestions listed before possibly search and try a few



On Tue, Apr 26, 2011 at 11:02 AM, Geoffrey Atkinson <geoffrey.j.atkinson@gmail.com> wrote:
I am experiencing the same issue with an Overo FE:

dmesg reveals the following:

lib80211: common routines for IEEE802.11 drivers
lib80211_crypt: registered algorithm 'NULL'
libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
NET: Registered protocol family 10
libertas_sdio mmc1:0001:1: firmware: requesting sd8686_helper.bin
libertas: failed to load helper firmware
libertas_sdio: probe of mmc1:0001:1 failed with error -110



On Wed, Apr 20, 2011 at 3:29 AM, David Brandt <david.brandt@mmmi.sdu.dk> wrote:
The "mmc1: new SDIO card at address 0001" line shows up during boot but only if I reboot the board by cycling the power, if I use the reset button or use the reboot command the line doesn't appear at boot.
When the line does appear I also get the following messages (I edited away some lines that are similar in the two boots):

mmc1: new SDIO card at address 0001
twl: i2c_read failed to transfer all messages
twl_rtc: Could not read TWLregister E - error -11
lib80211: common routines for IEEE802.11 drivers
libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
libertas: failed to load helper firmware
libertas_sdio: probe of mmc1:0001:1 failed with error -110

That the results get influenced by how I reboot the board makes it look like a hardware problem.


________________________________________
Fra: Alan Brumley [alanmailer@onlinecnc.com]
Sendt: 19. april 2011 23:04
Til: 'General mailing list for gumstix users.'
Emne: Re: [Gumstix-users] Overo Air wifi problem

Boy, that looks familiar.
I'm having the same problem.   I sent it back, got another with the same
problem.   I know I have a working image because I can boot the SD card on
another gumstix setup and it works fine.

Do you see this kernel message:
mmc1: new SDIO card at address 0001

That would be your kernel seeing the SDIO device (wifi) and then the drivers
should load.
I don't get those messages, so I guess I have to send this one back.

I also tried GPIO16 with no luck either.


-----Original Message-----
From: David Brandt [mailto:david.brandt@mmmi.sdu.dk]
Sent: Monday, April 18, 2011 3:27 AM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] Overo Air wifi problem

/sys/class/gpio/gpio16/value is set to 1.

Can you point me at a image which is confirmed to have wifi working on a
Overo Air? Just to be sure that it is broken hardware before I start
ordering new parts.

Do anybody have any insights on the reliability of gumsitx in general? I'm
considering basing a major research project on gumstix, and if there are any
general issues with quality control and reliability then it would be nice to
know.


________________________________________
Fra: Steven [gumstix-users@siyuz.net]
Sendt: 18. april 2011 10:16
Til: General mailing list for gumstix users.
Emne: Re: [Gumstix-users] Overo Air wifi problem

It seems to be a hardware problem.  You might want to check
/sys/class/gpio/gpio16/value to make sure it is '1', though I don't know why
it won't be.

On Mon, Apr 18, 2011 at 3:56 AM, David Brandt
<david.brandt@mmmi.sdu.dk<mailto:david.brandt@mmmi.sdu.dk>> wrote:
I have the libertas and libertas_sdio modules, however they are not loaded
at boot.

If I manually load them using 'modprobe libertas' and 'modprobe
liertas_sdio' they load just fine, but wlan0 still doesn't show up. Do I
have to create the device file manually?

If I grep for LIBERTAS in /proc/config.gz I get the following:

# CONFIG_LIBERTAS_THINFIRM is not set
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_SDIO=m
# CONFIG_LIBERTAS_SPI is not set
CONFIG_LIBERTAS_DEBUG=y
# CONFIG_LIBERTAS_MESH is not set

The Overo Air I'm using is brand new and hopefully isn't broken...


________________________________________
Fra: Steven [gumstix-users@siyuz.net<mailto:gumstix-users@siyuz.net>]
Sendt: 15. april 2011 16:59
Til: General mailing list for gumstix users.
Emne: Re: [Gumstix-users] Overo Air wifi problem

Hm... You can try "modprobe -l | grep libertas" to see if the module is
installed.  Alternatively you can also gunzip /proc/config.gz, and search to
see if CONFIG_LIBERTAS=m is in the kernel config file.  If the module is
installed, then you might have bad hardware.

On Fri, Apr 15, 2011 at 5:49 AM, David Brandt
<david.brandt@mmmi.sdu.dk<mailto:david.brandt@mmmi.sdu.dk><mailto:david.bran
dt@mmmi.sdu.dk<mailto:david.brandt@mmmi.sdu.dk>>> wrote:
Here is what I have tried.

I created a bootable sd-card based on the most recent overo image I could
find, which I downloaded from:
http://cumulus.gumstix.org/images/angstrom/factory/2011-03-25-1619/

For now I run it directly from the sd-card.

At boot I do NOT get the messages I'm supposed to according to the guide you
linked me, so the is no output during boot regarding libertas_sdio or
libertas.

If I try commands like:
root@overo:~# iwconfig wlan0 essid any

I get the response:
Error for wireless request "Set ESSID" (8B1A) :
 SET failed on device wlan0 ; No such device.

I also tried to remove stop and remove the NetworkManager, which didn't
help.

I also tried similar things on the factory installed image (running the
2.6.34 kernel) with similar results.

Any suggestions?


________________________________________
Fra: Steven
[gumstix-users@siyuz.net<mailto:gumstix-users@siyuz.net><mailto:gumstix-user
s@siyuz.net<mailto:gumstix-users@siyuz.net>>]
Sendt: 14. april 2011 17:26
Til: General mailing list for gumstix users.
Emne: Re: [Gumstix-users] Overo Air wifi problem

http://wiki.gumstix.org/index.php?title=Overo_Wifi

<http://wiki.gumstix.org/index.php?title=Overo_Wifi>What did you try?

Additional notes, the driver (at least the current one) does support power
management, so iwconfig power on works.

Also, you need to make sure network manager is disabled, i.e.

/etc/init.d/NetworkManager stop
opkg remove networkmanager


On Thu, Apr 14, 2011 at 8:53 AM, David Brandt
<david.brandt@mmmi.sdu.dk<mailto:david.brandt@mmmi.sdu.dk><mailto:david.bran
dt@mmmi.sdu.dk<mailto:david.brandt@mmmi.sdu.dk>><mailto:david.brandt@mmmi.sd
u.dk<mailto:david.brandt@mmmi.sdu.dk><mailto:david.brandt@mmmi.sdu.dk<mailto
:david.brandt@mmmi.sdu.dk>>>> wrote:
Hi,

I'm having a problem with getting wifi running on my Overo Air board.

If I try commands like:

$ ifup wlan0

I constantly get this error:

SET failed on device wlan0 ; No such device

I'm using the default build from gumstix (2.6.34 kernel) with no
modifications.

I tried the guides in the wiki etc but with no luck.

Any suggestions?

David
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