Jouni Malinen <jouni.malinen@xxxxxxxxxxx> writes: > On Tue, 2009-05-12 at 01:35 -0700, Davide Pesavento wrote: >> I've already reported ath9k's issues with PS multiple times [1] [2] >> [3], but the driver hasn't been fixed yet. You can find a verbose >> debugging output at [4], I hope that helps in fixing the problem (I >> can provide even more info if needed and I'm willing to test patches). > > I submitted a set of patches to resolve some of the PS issues in ath9k. > I would expect these to hit wireless-testing.git eventually, but if you > are willing to test the changes before that, you can find the patches > from http://w1.fi/p/ps/ > > One thing to note here is that there are still some issues with the > timeout=0 case (use of PS-Poll to fetch buffered frames) which is > enabled with "iwconfig wlan0 power on", so at this point, I would > recommend running the test either with the default wireless-testing.git > PS mode setting or by enabling power saving with "iwconfig wlan0 power > timeout 500ms" which should result in the same configuration. Most probably that's because mac80211 does not disable power save mode when sending PS-Poll frames. So stlc45xx does not require disable of PSM but then again ath9k requires it, we need to solve this somehow. I have been thinking about separating power save mode and firmware wakeup/sleep modes from each other in mac80211 API. To me it looks like ath9k does more like firmware wakeup/sleep when power save mode is changing. But this is just a wild idea, I have no idea if it's practical or not. -- Kalle Valo -- 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
