X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=package%2Fkernel%2Fmac80211%2Fpatches%2F315-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch;fp=package%2Fkernel%2Fmac80211%2Fpatches%2F315-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch;h=59e4ddee3eb0b2adbf5cbe4da6ace28d4152834d;hb=609208597b6d18b0c1730f34685db73c859aa492;hp=0000000000000000000000000000000000000000;hpb=efbd4e721d0bc6aa99614ef9d893f9cfe2264907;p=openwrt%2Fstaging%2Fhauke.git diff --git a/package/kernel/mac80211/patches/315-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch b/package/kernel/mac80211/patches/315-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch new file mode 100644 index 0000000000..59e4ddee3e --- /dev/null +++ b/package/kernel/mac80211/patches/315-ath9k-adjust-tx-power-reduction-for-US-regulatory-do.patch @@ -0,0 +1,24 @@ +From: Felix Fietkau +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 +this in the EEPROM based tx power reduction code. + +Signed-off-by: Felix Fietkau +--- + +--- a/drivers/net/wireless/ath/ath9k/hw.c ++++ b/drivers/net/wireless/ath/ath9k/hw.c +@@ -2954,6 +2954,10 @@ void ath9k_hw_apply_txpower(struct ath_h + if (ant_gain > max_gain) + ant_reduction = ant_gain - max_gain; + ++ /* FCC allows maximum antenna gain of 3 dBi */ ++ if (reg->region == NL80211_DFS_FCC) ++ ant_reduction = min_t(int, ant_reduction - 6, 0); ++ + ah->eep_ops->set_txpower(ah, chan, ctl, ant_reduction, new_pwr, test); + } +