On Thursday, July 28, 2011 08:57:01 PM Harshal Chhaya wrote: > On Thu, Jul 28, 2011 at 11:49 AM, Christian Lamparter > <chunkeey@xxxxxxxxxxxxxx> wrote: > > On Thursday, July 28, 2011 06:18:09 PM Harshal Chhaya wrote: > >> Sujith, Christian, > >> > >> On the wiki page for carl9170, the first item in the "not working yet" list is: > >> * Power Save Mode, It's implemented but buggy > >> > >> Is this still the case? > >> > >> I am seeing clients disconnect after a few seconds when I enable power > >> saving on the clients. I can send more details if needed. > > Oh no, unless of course your failing clients are also running carl9170. > > Take a look at 802.11-2007 11.2 for an explantation. APs usually don't > > do any PSM. > > But I am seeing a definite problem with network stability when I > enable power saving on my clients. The clients work as expected with > another off-the-shelf AP. Well, there are several different ps schemes [legacy ps, aspd and u-aspd] and each implementation might differ in this regard. So, this is always a bit of a apple and orange comparision... unless of course your off-the-shelf AP uses the same mac80211 stack and just a different driver [e.g.: ath9k(_htc)/iwlagn/p54/b43] > Could you tell me how to enable debug output in carl9170? I would like > to better understand what's going on in the carl9170 driver/firmware > when I see these disconnects. There's no such switch in the driver or firmware. But because the driver relies on mac80211 to do the actual management, you can enable a few options there: CONFIG_MAC80211_VERBOSE_PS_DEBUG [dmesg] CONFIG_MAC80211_DEBUGFS [/sys/kernel/debug/ieee80211/phyX/] http://linuxwireless.org/en/developers/Documentation/mac80211/tracing > All of my clients use CCMP. Which file/function do I look at to see > what it would take to use all 64 key entries for CCMP? drivers/net/wireless/ath/carl9170/main.c / carl9170_op_set_key Regards, Christian -- 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
