From: Max Filippov <jcmvbkbc@gmail.com>
To: Alexander Wenzel <wenzel@fgan.de>
Subject: Re: Problem with p54 driver and ibss mode
Date: Thu, 9 Jul 2009 21:57:20 +0400
Cc: linux-wireless@vger.kernel.org
References: <4A55DB91.2070305@fgan.de> <73aaf0dd0907090620i752b7f9cq60563f8e22c02d75@mail.gmail.com> <4A560E4B.6080209@fgan.de>
In-Reply-To: <4A560E4B.6080209@fgan.de>
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="utf-8"
Message-Id: <200907092157.21784.jcmvbkbc@gmail.com>
Sender: linux-wireless-owner@vger.kernel.org

В сообщении от Thursday 09 July 2009 Alexander Wenzel написал(a):
> Hi!
> >> I'm trying to get the latest p54 wireless drivers (ad-hoc mode)
> >> to work on a Nokia N810... So far, without any success.
> >> [ 3905.535125] WARNING: at /home/wen/work/NokiaN810/compat-wireless-2009-07-09/net/mac80211/sta_info.c:339 sta_info_insert+0x7c/0x15c [mac80211]()
> > As far as I can see, this is check that incoming STA and your STA have
> > different MAC addresses. If you don't set up MAC manually on both
> > devices and make it unique, chances high that they are equal.
> 
> You saved my day :D Finally it works...! Thanks for the hint.
> 
> [  214.478668] wlan0: Selected IBSS BSSID 56:97:1a:24:11:6c based on configured SSID
> 
> # iw dev wlan0 station dump
> Station 00:02:ee:c0:ff:ee (on wlan0)
> 	inactive time:	429 ms
> 	rx bytes:	8964
> 	tx bytes:	408
> 	signal:  	55 dBm
> 	tx bitrate:	1.0 MBit/s
> 
> I just checked the other N810 devices and every device has
> the same mac address. And here we go... [p54spi_eeprom.h:39]
> 0x00, 0x02, 0xee, 0xc0, 0xff, 0xee,
> 
> The original kernel with default os shows the correct address.
> When booting a different os with the with the original or custom
> kernel it shows the 'coffee' address.
> So is there a way to let the kernel receive and set the
> correct mac address of the wlan device?
> I guess my problem is this line:
> [ 3685.320800] cx3110x spi2.0: loading default eeprom...

You're right. I guess that easiest way to deal with it is to save blob from p54spi_eeprom.h into a file
3826.eeprom in the same directory as 3826.arm and fix MAC address in it, according to comments in p54spi_eeprom.h

These data for sure must reside on /dev/mtdblk1 partition, but they're probably somehow coded/obfuscated.
I couldn't find anything similar to MAC of my own n810 there.

Thanks.
-- Max