Re: b43 scans wifi networks with old firmware only.

["Roman V.Leon." <roman-vl@meta.ua>]

> On 11/03/2011 06:21 AM, Roman V.Leon. wrote:
>> Hello Gents.
>> I have problem with b43 driver 5.100.138, it's not scanning networks for
>> unknown reason. I have broadcom wifi card PCIID is 14e4:4315, linux kern
>> ver. is 3.0. When i'm trying to launch iwlist scan, i'm getting "no scan
>> results".
>>
>> for example:
>> sudo ifconfig wlan0 up
>> sudo iwlist wlan0 scan
>> No scan results.
>>
>> With the older driver 5.10.56.2808, i see normal scan results. If you
>> need
>> any more information, i will send.
>
> The condition you report is known. Broadcom changed the TX/RX header
> structure with firmware versions greater than 600, as shown by a 'dmesg
> | grep firmware'. Those changes are not implemented in b43 until kernel
> 3.2.
>
> These numbers are not b43 driver numbers, nor are they firmware numbers
> reported by b43. They are the versions of Broadcom drivers.
>
> If you look at
> http://wireless.kernel.org/en/users/Drivers/b43#firmwareinstallation,
> you will see that firmware should be extracted from Broadcom driver
> 5.100.138 "if you are using kernel 3.2 or newer". For older kernels you
> should extract firmware from the 5.10.56.27.3 of the Broadcom
> proprietary driver. Of course, 5.10.56.2808 will also work.
>
> You could also get those changes by employing a bleeding-edge version of
> compat-wireless. In that case, firmware from 5.100.138 would work.
>
> Larry
>
OK, Larry. Now I see. Thank you very much!

-- 
Cheers,
Roman V.Leon.