diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 4074b87..6a9cd74 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1588,6 +1588,16 @@
 
 	/* Indicates whether HT40 is enabled */
 	int ht40_enabled;
+
+	/* Indicates whether VHT is enabled */
+	int vht_enabled;
+
+	/* Configured ACS channel width */
+	u16 ch_width;
+
+	/* ACS channel list info */
+	unsigned int ch_list_len;
+	const u8 *ch_list;
 };
 
 
@@ -2657,18 +2667,6 @@
 			  int encrypt);
 
 	/**
-	 * shared_freq - Get operating frequency of shared interface(s)
-	 * @priv: Private driver interface data
-	 * Returns: Operating frequency in MHz, 0 if no shared operation in
-	 * use, or -1 on failure
-	 *
-	 * This command can be used to request the current operating frequency
-	 * of any virtual interface that shares the same radio to provide
-	 * information for channel selection for other virtual interfaces.
-	 */
-	int (*shared_freq)(void *priv);
-
-	/**
 	 * get_noa - Get current Notice of Absence attribute payload
 	 * @priv: Private driver interface data
 	 * @buf: Buffer for returning NoA
@@ -4558,10 +4556,18 @@
 	 * struct acs_selected_channels - Data for EVENT_ACS_CHANNEL_SELECTED
 	 * @pri_channel: Selected primary channel
 	 * @sec_channel: Selected secondary channel
+	 * @vht_seg0_center_ch: VHT mode Segment0 center channel
+	 * @vht_seg1_center_ch: VHT mode Segment1 center channel
+	 * @ch_width: Selected Channel width by driver. Driver may choose to
+	 *	change hostapd configured ACS channel width due driver internal
+	 *	channel restrictions.
 	 */
 	struct acs_selected_channels {
 		u8 pri_channel;
 		u8 sec_channel;
+		u8 vht_seg0_center_ch;
+		u8 vht_seg1_center_ch;
+		u16 ch_width;
 	} acs_selected_channels;
 };
 
diff --git a/src/drivers/driver_atheros.c b/src/drivers/driver_atheros.c
index f464421..b8e7864 100644
--- a/src/drivers/driver_atheros.c
+++ b/src/drivers/driver_atheros.c
@@ -1694,6 +1694,13 @@
 	struct atheros_driver_data *drv = priv;
 
 	atheros_reset_appfilter(drv);
+
+	if (drv->wpa_ie || drv->wps_beacon_ie || drv->wps_probe_resp_ie) {
+		wpabuf_free(drv->wpa_ie);
+		wpabuf_free(drv->wps_beacon_ie);
+		wpabuf_free(drv->wps_probe_resp_ie);
+		atheros_set_opt_ie(priv, NULL, 0);
+	}
 	netlink_deinit(drv->netlink);
 	(void) linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
 	if (drv->ioctl_sock >= 0)
@@ -1704,9 +1711,6 @@
 		l2_packet_deinit(drv->sock_xmit);
 	if (drv->sock_raw)
 		l2_packet_deinit(drv->sock_raw);
-	wpabuf_free(drv->wpa_ie);
-	wpabuf_free(drv->wps_beacon_ie);
-	wpabuf_free(drv->wps_probe_resp_ie);
 	free(drv);
 }
 
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index aaff9ab..7b3dc51 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -6522,47 +6522,6 @@
 }
 
 
-static int wpa_driver_nl80211_shared_freq(void *priv)
-{
-	struct i802_bss *bss = priv;
-	struct wpa_driver_nl80211_data *drv = bss->drv;
-	struct wpa_driver_nl80211_data *driver;
-	int freq = 0;
-
-	/*
-	 * If the same PHY is in connected state with some other interface,
-	 * then retrieve the assoc freq.
-	 */
-	wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
-		   drv->phyname);
-
-	dl_list_for_each(driver, &drv->global->interfaces,
-			 struct wpa_driver_nl80211_data, list) {
-		if (drv == driver ||
-		    os_strcmp(drv->phyname, driver->phyname) != 0 ||
-		    !driver->associated)
-			continue;
-
-		wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
-			   MACSTR,
-			   driver->phyname, driver->first_bss->ifname,
-			   MAC2STR(driver->first_bss->addr));
-		if (is_ap_interface(driver->nlmode))
-			freq = driver->first_bss->freq;
-		else
-			freq = nl80211_get_assoc_freq(driver);
-		wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
-			   drv->phyname, freq);
-	}
-
-	if (!freq)
-		wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
-			   "PHY (%s) in associated state", drv->phyname);
-
-	return freq;
-}
-
-
 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
 			      int encrypt)
 {
@@ -8423,12 +8382,24 @@
 	    (params->ht_enabled &&
 	     nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) ||
 	    (params->ht40_enabled &&
-	     nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED))) {
+	     nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) ||
+	    (params->vht_enabled &&
+	     nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) ||
+	    nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH,
+			params->ch_width) ||
+	    (params->ch_list_len &&
+	     nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST, params->ch_list_len,
+		     params->ch_list))) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
 	}
 	nla_nest_end(msg, data);
 
+	wpa_printf(MSG_DEBUG,
+		   "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d CH_LIST_LEN: %u",
+		   params->hw_mode, params->ht_enabled, params->ht40_enabled,
+		   params->vht_enabled, params->ch_width, params->ch_list_len);
+
 	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 	if (ret) {
 		wpa_printf(MSG_DEBUG,
@@ -8498,7 +8469,6 @@
 	.signal_monitor = nl80211_signal_monitor,
 	.signal_poll = nl80211_signal_poll,
 	.send_frame = nl80211_send_frame,
-	.shared_freq = wpa_driver_nl80211_shared_freq,
 	.set_param = nl80211_set_param,
 	.get_radio_name = nl80211_get_radio_name,
 	.add_pmkid = nl80211_add_pmkid,
diff --git a/src/drivers/driver_nl80211.h b/src/drivers/driver_nl80211.h
index 802589a..64c4665 100644
--- a/src/drivers/driver_nl80211.h
+++ b/src/drivers/driver_nl80211.h
@@ -270,5 +270,6 @@
 int wpa_driver_nl80211_stop_sched_scan(void *priv);
 struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv);
 void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv);
+const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie);
 
 #endif /* DRIVER_NL80211_H */
diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index 13c446f..ba1e240 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -575,22 +575,25 @@
 				continue;
 			}
 			vinfo = nla_data(nl);
-			switch (vinfo->subcmd) {
-			case QCA_NL80211_VENDOR_SUBCMD_TEST:
-				drv->vendor_cmd_test_avail = 1;
-				break;
-			case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
-				drv->roaming_vendor_cmd_avail = 1;
-				break;
-			case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
-				drv->dfs_vendor_cmd_avail = 1;
-				break;
-			case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
-				drv->get_features_vendor_cmd_avail = 1;
-				break;
-			case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
-				drv->capa.flags |= WPA_DRIVER_FLAGS_ACS_OFFLOAD;
-				break;
+			if (vinfo->vendor_id == OUI_QCA) {
+				switch (vinfo->subcmd) {
+				case QCA_NL80211_VENDOR_SUBCMD_TEST:
+					drv->vendor_cmd_test_avail = 1;
+					break;
+				case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
+					drv->roaming_vendor_cmd_avail = 1;
+					break;
+				case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
+					drv->dfs_vendor_cmd_avail = 1;
+					break;
+				case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
+					drv->get_features_vendor_cmd_avail = 1;
+					break;
+				case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
+					drv->capa.flags |=
+						WPA_DRIVER_FLAGS_ACS_OFFLOAD;
+					break;
+				}
 			}
 
 			wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
diff --git a/src/drivers/driver_nl80211_event.c b/src/drivers/driver_nl80211_event.c
index 87e412d..8cebfb2 100644
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -271,6 +271,7 @@
 			       struct nlattr *ptk_kek)
 {
 	union wpa_event_data event;
+	const u8 *ssid;
 	u16 status_code;
 
 	if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
@@ -331,6 +332,16 @@
 	if (req_ie) {
 		event.assoc_info.req_ies = nla_data(req_ie);
 		event.assoc_info.req_ies_len = nla_len(req_ie);
+
+		if (cmd == NL80211_CMD_ROAM) {
+			ssid = nl80211_get_ie(event.assoc_info.req_ies,
+					      event.assoc_info.req_ies_len,
+					      WLAN_EID_SSID);
+			if (ssid && ssid[1] > 0 && ssid[1] <= 32) {
+				drv->ssid_len = ssid[1];
+				os_memcpy(drv->ssid, ssid + 2, ssid[1]);
+			}
+		}
 	}
 	if (resp_ie) {
 		event.assoc_info.resp_ies = nla_data(resp_ie);
@@ -1500,6 +1511,25 @@
 		nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_CHANNEL]);
 	event.acs_selected_channels.sec_channel =
 		nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_CHANNEL]);
+	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL])
+		event.acs_selected_channels.vht_seg0_center_ch =
+			nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL]);
+	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL])
+		event.acs_selected_channels.vht_seg1_center_ch =
+			nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL]);
+	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH])
+		event.acs_selected_channels.ch_width =
+			nla_get_u16(tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH]);
+
+	wpa_printf(MSG_INFO,
+		   "nl80211: ACS Results: PCH: %d SCH: %d BW: %d VHT0: %d VHT1: %d",
+		   event.acs_selected_channels.pri_channel,
+		   event.acs_selected_channels.sec_channel,
+		   event.acs_selected_channels.ch_width,
+		   event.acs_selected_channels.vht_seg0_center_ch,
+		   event.acs_selected_channels.vht_seg1_center_ch);
+
+	/* Ignore ACS channel list check for backwards compatibility */
 
 	wpa_supplicant_event(drv->ctx, EVENT_ACS_CHANNEL_SELECTED, &event);
 }
diff --git a/src/drivers/driver_nl80211_scan.c b/src/drivers/driver_nl80211_scan.c
index 3911f48..9cd3162 100644
--- a/src/drivers/driver_nl80211_scan.c
+++ b/src/drivers/driver_nl80211_scan.c
@@ -433,7 +433,7 @@
 }
 
 
-static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
+const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
 {
 	const u8 *end, *pos;