Carl Huang <cjhuang@xxxxxxxxxxxxxx> wrote: > ath10k assigns ath10k_mac_set_sar_specs to ath10k_ops, and > this function is called when user space application calls > NL80211_CMD_SET_SAR_SPECS. ath10k also registers SAR type, > and supported frequency ranges to wiphy so user space can > query SAR capabilities. > > This SAR power limitation is compared to regulatory txpower > and selects the minimal one to set when station is connected. > Otherwise, it delays until the station is connected. If the > station is disconnected, it returns to regulatory txpower. > > This feature is controlled by hw parameter: dynamic_sar_support. > > Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 > > Signed-off-by: Carl Huang <cjhuang@xxxxxxxxxxxxxx> > Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx> > Reviewed-by: Abhishek Kumar <kuabhs@xxxxxxxxxxxx> > Reported-by: kernel test robot <lkp@xxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> In the pending branch removed test for !sar->sub_specs based on Dan's report. -- https://patchwork.kernel.org/project/linux-wireless/patch/20201203103728.3034-4-cjhuang@xxxxxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
