Hi all, I am testing a custom algorithm whereby I'd like to adaptively command a STA to sleep/awake. Of course I would like to do so in the higher level possible (for simplicity). The following is a sort of a summary of my conclusions on the "state-of-art" on the implementation of such a thing. I would like to ask you whether i am totally misleaded here. Thanks in advance! * mac80211: I can see in mac80211 that the function ap_sta_ps_start/end() is defined to notify drivers of such transitions using drv_sta_notify(STA_NOTIFY_AWAKE/SLEEP) callback. This looked promising but... reading ath5k/ath9k/b43 driver codes, the atheros ones do not implement these notification handlers at all, and b43 does not do anything important eventually with them. So, my guess is that actually the drivers themselves are the ones in commanding the powersaving mode transitions awake/sleep regardless of what mac80211 "could say". * ath5k: seems to not command HW to sleep ever. (Only implemented the "hw on hold" which is not used within ath5k). * ath9k: Indeed it schedules sleep/awake timers. This way, it is ath9k decision regardless what mac80211 say. * b43: seems to not command HW to sleep ever... Again, I'd appreciate if someone would point me out whether my conclusions are correct. Thanks! -- 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
