Realtek RTL8192CU odyssey

[Rudi]

Hi Tom,

I've found the reason for the problem we were talking about yesterday: There are
different drivers used on different platforms !

On RaspberryPi, they have disabled the upstream RTLWIFI driver and switched to a
supposedly newer (?) vendor specific one:

https://github.com/raspberrypi/linux/commits/rpi-3.10.y/drivers/net/wireless/Kconfig


On A10, the mainline RTLWIFI is marked as experimental and is not used either. Instead
there also is a vendor specific one, that looks very similar to what's used on the Pi.
Not checked, if it's 100% identical...


Only on CuBox and CuBox-i the mainline RTLWIFI is active. And - as we learned - is not
working properly. I have added the driver from the RaspberryPi sources to both kernels
and it looks good so far.

Will most likely commit this in the evening... I really love these small adapters. Just
ordered another one ;-).



--

Ruediger "Rudi" Ihle

[Thomas Genty]

Le 24/03/2014 10:01, Rudi a écrit :
> Hi Tom,
Hello Rudi,

>
> I've found the reason for the problem we were talking about yesterday: There are
> different drivers used on different platforms !

Well, that's something funny ...

>
> On RaspberryPi, they have disabled the upstream RTLWIFI driver and switched to a
> supposedly newer (?) vendor specific one:
>
> https://github.com/raspberrypi/linux/commits/rpi-3.10.y/drivers/net/wireless/Kconfig
>
>
> On A10, the mainline RTLWIFI is marked as experimental and is not used either. Instead
> there also is a vendor specific one, that looks very similar to what's used on the Pi.
> Not checked, if it's 100% identical...
>
>
> Only on CuBox and CuBox-i the mainline RTLWIFI is active. And - as we learned - is not
> working properly. I have added the driver from the RaspberryPi sources to both kernels
> and it looks good so far.

that's good,
does it improve really speed ?

> Will most likely commit this in the evening... I really love these small adapters. Just
> ordered another one ;-).

;-)
Yes that's a good product.
>
>

[Rudi]

Hi,

>> Only on CuBox and CuBox-i the mainline RTLWIFI is active. And - as we learned - is not
>> working properly. I have added the driver from the RaspberryPi sources to both kernels
>> and it looks good so far.
> that's good,
> does it improve really speed ?

Yes. With the old driver I got a lot of "buffering..." messages when playing videos via
DLNA. Basically, it was unusable. Now it's O.K. for me.


However, I still have speed issues with the built-in WLAN in the I4. But given the fact
that there also are a bunch of error messages from the broadcom driver, I guess that is
not ready for prime time yet.


--

Ruediger "Rudi" Ihle

[Thomas Genty]

Thats 'nice, just need to find a rtl8192Cu dongle now.
;-)

[Rudi]

Hi,

> Thats 'nice, just need to find a rtl8192Cu dongle now.
> ;-)

The EdiMax seems to be sligtly more expensive in France than it is here. I payed €8.15
(free shipping).

http://www.amazon.fr/gp/offer-listing/B003MTTJOY/ref=dp_olp_new_mbc?ie=UTF8&condition=new




--

Ruediger "Rudi" Ihle

[Rudi]

Tom,

>> Thats 'nice, just need to find a rtl8192Cu dongle now.

Forgot to mention: The actual chip in the Edimax is an RTL8188CUS, which just happens to
uses the rtl8192cu driver. Maybe the bad reports about the TP-LINK WN725N are reatated
to the same issue we addressed with the driver change. But I don't know...



--

Ruediger "Rudi" Ihle

[Thomas Genty]

found a r8712u device
works quite fine here
I was able to play E_D-HD over nfs.
Maybe we need to increase a little videocache settings or something
like that for videos

Tom