From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felix Fietkau Date: Mon, 04 Mar 2013 23:38:12 +0100 Subject: [ath9k-devel] Enabling tx-power-per-vif in ath9k? In-Reply-To: <5135201D.6080905@candelatech.com> References: <5135201D.6080905@candelatech.com> Message-ID: <51352254.9080802@openwrt.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On 2013-03-04 11:28 PM, Ben Greear wrote: > It seems there is some mac80211 framework for handling per VIF tx-power > settings now, but from what I can tell, this is not supported in ath9k. Correct. > Any idea how feasible it is to do per-vif tx-power in ath9k? I think > it would come down to putting the desired tx-power into each packet > (as the VIF sends it towards the driver) and then changing the power > as packets were transmitted in the NIC... No need for 'changing the power as packets were transmitted', that would be horribly messy and unreliable anyway. The hardware is capable of proper per-packet TPC, configurable via the tx descriptor. > The goal is to have multiple virtual APs, each with different tx-powers > in order to roughly affect rx-signal quality for the stations that > are scanning for APs... Interesting. - Felix