[Gta04-owner] New Replicant 4.0 image

Lukas Maerdian luk at slyon.de
Sun Jan 26 18:16:07 CET 2014

On 03.12.2013 04:22 UTC+0800, Adrien Dorsaz wrote:
> Le lundi 02 décembre 2013 à 14:46 +0100, hermann.schwaerzler at chello.at a
> écrit :
>> Hello,
>> How about Wi-Fi? Should this work? It doesn't for me but I had not much time to
>> test it.
> I don't know, but I've tried to copy /lib/firmware/libertas*
> and /lib/firmware/sd* from the latest Debian-rootfs from GoldenDelicious
> to /sys/etc/firmware (and to /sys/lib/firmware iirc, to be sure).
> Then I was able to load libertas_sdio module and I got wlan0 interface
> (I've done it using adb shell and su).
> It seems not sufficient to get wifi on Replicant, but I don't know how
> it works, e.g. if it needs special name as 'eth0' or if it should be
> loaded on boot (I didn't find a file such /etc/modules like on standard
> distribution).
> Otherwise, the Replicant image seems well working (excepted known bugs).
> Do you need we test/report anything with this image ?
> I attach here a bit of my 'dmesg' command after libertas_sdio loaded.

Hi and thanks!
This mail was a nice first starting point and motivation kick to tackle
the GTA04/Replicant wifi issues. Getting the wifi to work via the
Android GUI is very troublesome, as there are a lot of different
versions of wpa_supplicant available, with a lot of different potential
driver backends and different types of sockets via which Android tries
to communicate with wpa_supplicant.

Furthermore, Android doesn't use the generic Linux WEXT commands to talk
to the driver, but introduces private, Android specific commands...
Luckily there is the "awext" driver backend, which provides a
"translation layer" between Android commands and WEXT commands.

Right now I'm at a point where the wifi is powered up at boot time and
scanning for networks works via the Android settings GUI. Connecting to
networks isn't fully working yet, but I did not yet debug the exact
problem. I guess it has something to do with the dhcpcd service, i.e.
obtaining the IP address from the router.

If you like to try out the latest improvements, you can compile an up to
date Replicant image for your GTA04 as described here:

Test reports and help with debuging the remaining problems (especially
wifi and bluetooth) are highly welcome! :)


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