On 06/27/2013 03:12 AM, Maxime Ripard wrote:
Hi everyone, I'm currently trying to use a RTL8192CU on an ARM (Freescale imx28, armv5) platform, using 3.10-rc3. Trouble is, while the chip is correctly detected and you can use iw on it without any problem it seems, once you start an association to an access point, the association goes on, seems to associate, displaying a WARN() message [1] and then, after what looks like a random amount of time (could be right away, could be after a few minutes), deassociate [2]. During the time where it's associated, we never seem to transmit any packets, while iw reports packets being sent, I guess we can assume that they are actually never transmitted as well [3]. What seems odd to me as well is that the signal power reported for the access point is excessively high when using iw scan (10 dbm), and once connected, the signal strength is -64dbm, which makes quite a huge difference.
That warning is under discussion. See the thread entitled "rtl8192cu: slow path warning" in the linux-wireless ML. I will add you to the Cc list on those messages.
You should switch to kernel 3.10-rc7. There are a lot of changes to rtl8192cu in that version that are not in -rc3. Those updates mostly affect WPA and WEP encryption.
I never take signal power values seriously. Just observe the comments scattered throughout the code regarding them.
Larry -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
