> On Fri, 2014-11-28 at 16:02 +0100, Lorenzo Bianconi wrote: > >> I just need to notify lower driver (ath9k in my case) to setup TPC >> registers in order to take into account TX power configured in frame >> descriptors. For that purpose I added tpc_enabled flags in >> ieee80211_bss_conf and in ieee80211_conf. Is there any other variables >> I can use to notify that configuration? > > Well, arguably, you can just do that unconditionally. If you want to do > it "right" according to the nl80211 API that we introduced due to wext > compatibility (IIRC), you'd have to look at the value passed in enum > nl80211_tx_power_setting. This can take > > NL80211_TX_POWER_AUTOMATIC - no limit from userspace > NL80211_TX_POWER_LIMITED - limit, but allow using less than specified > NL80211_TX_POWER_FIXED - use exactly what userspace wanted > > I don't think any driver really implements this today, but you could > take this as a hint and only enable TPC (with or without the user's > specified limit) in the first two cases. Sounds good to me. I will send a patch v2 where I will enable TPC if tx_power_setting has been set to NL80211_TX_POWER_AUTOMATIC or NL80211_TX_POWER_LIMITED. Right now ath9k computes maximum TX power value per-rate as minimum between user TX power and channel/regulatory constraints. Best regards, Lorenzo > > johannes > -- UNIX is Sexy: who | grep -i blonde | talk; cd ~; wine; talk; touch; unzip; touch; strip; gasp; finger; gasp; mount; fsck; more; yes; gasp; umount; make clean; sleep -- 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
