Re: IWD 1.27 with brcmfmac not working for roaming

[Denis Kenzior <denkenz@gmail.com>]

Hi Martin,

On 10/9/24 4:43 AM, Martin Petzold wrote:
> Hi
> 
> PROBLEM
> 
> We (still) have some trouble with IWD together with brcmfmac. We updated 
> firmware for the chip (Infineon CYW43353) to latest version 11.171.0.24 and also 

Ugh :)  That stuff is known to be problematic.  You might want to involve Arend 
in this discussion.

> IWD to 1.27. The situation became a lot more stable...until we tested roaming 
> setups. It seems that for IWD 1.27 and maybe also later roaming is completely 
> broken (at least for brcmfmac). It does not connect (No suitable BSSes found) or 

'brcmfmac' -> Full MAC.  Full MAC implies that all roaming is handled by the 
firmware and iwd is not (or hardly?) involved in roaming with such setups.

> it connects but with wrong AP (poorer access point) or it just looses connection 
> and does not re-connect (maybe even blacklists somehow wrong). I have also found 

Reconnecting we can maybe fix.  Do you have logs?

> several related issues [1,2] and also there are related change logs for IWD in 
> several versions, up to 2.22 [3].

<snip>

> 3. Build IWD 2.22 from source (maybe using Debian sid source package?) -> how to 
> do best and will this work with libc6 version 2.36? Missing libreadline8t64?

I mean this is your only real solution.  There is no 'long term support' model 
for iwd.  You either run the latest or you're on your own.  It is highly 
unlikely that any of the developers will look at logs (or attempt to fix) 
anything but the latest version.

Regards,
-Denis