From 918f4c8887ab5dc0cbf1565e1c73fa03fcfff21a Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Tue, 11 Jun 2019 14:46:28 +0200 Subject: [PATCH] mac80211: ath9k: Increase allowed antenna gain to 6 dBi FCC allows maximum antenna gain of 6 dBi. 15.247(b)(4): > (4) The conducted output power limit > specified in paragraph (b) of this section > is based on the use of antennas > with directional gains that do not exceed > 6 dBi. Except as shown in paragraph > (c) of this section, if transmitting > antennas of directional gain greater > than 6 dBi are used, the conducted > output power from the intentional radiator > shall be reduced below the stated > values in paragraphs (b)(1), (b)(2), > and (b)(3) of this section, as appropriate, > by the amount in dB that the > directional gain of the antenna exceeds > 6 dBi. Signed-off-by: Sven Eckelmann --- ...h9k-adjust-tx-power-reduction-for-US-regulatory-do.patch | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/package/kernel/mac80211/patches/ath/365-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch b/package/kernel/mac80211/patches/ath/365-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch index cbc2f5ad91..363e9aa9a3 100644 --- a/package/kernel/mac80211/patches/ath/365-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch +++ b/package/kernel/mac80211/patches/ath/365-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch @@ -3,7 +3,7 @@ Date: Wed, 19 Jul 2017 08:49:31 +0200 Subject: [PATCH] ath9k: adjust tx power reduction for US regulatory domain -FCC regulatory rules allow for up to 3 dBi antenna gain. Account for +FCC regulatory rules allow for up to 6 dBi antenna gain. Account for this in the EEPROM based tx power reduction code. Signed-off-by: Felix Fietkau @@ -15,9 +15,9 @@ Signed-off-by: Felix Fietkau if (ant_gain > max_gain) ant_reduction = ant_gain - max_gain; -+ /* FCC allows maximum antenna gain of 3 dBi */ ++ /* FCC allows maximum antenna gain of 6 dBi */ + if (reg->region == NL80211_DFS_FCC) -+ ant_reduction = max_t(int, ant_reduction - 6, 0); ++ ant_reduction = max_t(int, ant_reduction - 12, 0); + ah->eep_ops->set_txpower(ah, chan, ctl, ant_reduction, new_pwr, test); -- 2.25.1