--- a/usr/lib/byobu/wifi_quality
+++ b/usr/lib/byobu/wifi_quality
@@ -19,32 +19,61 @@
 #    You should have received a copy of the GNU General Public License
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+___get_dev_list() {
+	if [ -n "$MONITORED_NETWORK" ]; then
+		echo "$MONITORED_NETWORK"
+	else
+		iw dev | grep Interface | cut -f2 -d\ 
+	fi
+}
+
 __wifi_quality_detail() {
-	/sbin/iwconfig 2>/dev/null
+	if eval $BYOBU_TEST iw >/dev/null 2>&1; then
+		local dev
+		for dev in $(___get_dev_list); do
+			iw dev "$dev" info
+			iw dev "$dev" link
+			echo
+		done
+	elif eval $BYOBU_TEST iwconfig >/dev/null 2>&1; then
+		iwconfig 2>/dev/null
+	fi
 }
 
 __wifi_quality() {
 	local out bitrate quality
-	# iwconfig is expected to output lines like:
-	#    Bit Rate=54 Mb/s   Tx-Power=15 dBm
-	#    Link Quality=60/70  Signal level=-50 dBm
-	# the awk below tokenizes the output and prints shell evalable results
-	out=`iwconfig $MONITORED_NETWORK 2>/dev/null |
-		awk '$0 ~ /[ ]*Link Quality./ {
-   sub(/.*=/,"",$2); split($2,a,"/");
-   printf "quality=%.0f\n", 100*a[1]/a[2] };
-   $0 ~ /[ ]*Bit Rate/ { sub(/.*[:=]/,"",$2); printf("bitrate=%s\n", $2); }
-   '`
-	eval "$out"
-	[ -z "$bitrate" ] && bitrate="0"
-	if [ -z "$quality" ] || [ "$quality" = "0" ]; then
-		quality="0"
+	if eval $BYOBU_TEST iw >/dev/null 2>&1; then
+		local dev
+		for dev in $(___get_dev_list); do
+			# signal to quality: https://superuser.com/a/1360447
+			out=`iw dev "$dev" link 2>/dev/null |
+				awk '$0 ~ /^\s*signal:/ { a = 100 * ($2 + 110) / 70;
+				    printf "quality=%.0f\n", (a > 100) ? 100 : ((a < 0) ? 0 : a); }
+				    $0 ~ /^\s*tx bitrate:/ { printf "bitrate=%s\n", $3; }
+				    '`
+			eval "$out"
+			[ -z "$bitrate" ] || [ -z "$quality" ] || break
+		done
+	elif eval $BYOBU_TEST iwconfig >/dev/null 2>&1; then
+		# iwconfig is expected to output lines like:
+		#    Bit Rate=54 Mb/s   Tx-Power=15 dBm
+		#    Link Quality=60/70  Signal level=-50 dBm
+		# the awk below tokenizes the output and prints shell evalable results
+		out=`iwconfig $MONITORED_NETWORK 2>/dev/null |
+			awk '$0 ~ /[ ]*Link Quality./ {
+			    sub(/.*=/,"",$2); split($2,a,"/");
+			    printf "quality=%.0f\n", 100*a[1]/a[2] };
+			    $0 ~ /[ ]*Bit Rate/ { sub(/.*[:=]/,"",$2); printf("bitrate=%s\n", $2); }
+			    '`
+		eval "$out"
 	fi
-	if [ "$bitrate" = "0" ] || [ "$quality" = "0" ] || [ -z "$bitrate" ] || [ -z "$quality"]; then
+	[ -n "$bitrate" ] || bitrate=0
+	[ -n "$quality" ] || quality=0
+	if [ "$bitrate" -gt 0 ] && [ "$quality" -gt 0 ]; then
+		printf "${ICON_WIFI}"; color b C k; printf "%s" "$bitrate"; color -; color C k; printf "%s" "$ICON_MBPS"; color -; color b C k; printf "%s" "$quality"; color -; color C k; printf "%s" "$PCT"; color --
+	else
 		rm -f "$BYOBU_RUN_DIR/status.$BYOBU_BACKEND/wifi_quality"*
-		return
 	fi
-	printf "${ICON_WIFI}"; color b C k; printf "%s" "$bitrate"; color -; color C k; printf "%s" "$ICON_MBPS"; color -; color b C k; printf "%s" "$quality"; color -; color C k; printf "%s" "$PCT"; color --
 }
 
 # vi: syntax=sh ts=4 noexpandtab