Am 15.08.2018 um 02:30 schrieb Pradeep Kumar Chitrapu:

  
+	if (test_bit(WMI_SERVICE_RTT, ar->wmi.svc_map))
+		wiphy_ext_feature_set(ar->hw->wiphy,
+				      NL80211_EXT_FEATURE_SET_FTM_RESPONDER);
+

not sure if this is accurate. even if WMI_SERVICE_RTT is set, the 
firmware may not support this feature. this feature doesnt seem to be 
implemented in current firmware releases
i checked the firmware sourcecode i have from 3.4 series and it doesnt 
support this feature


Sebastian