diff --git a/net/modemmanager/files/modemmanager.common b/net/modemmanager/files/modemmanager.common
index b4139abadb..6367eb32bb 100644
--- a/net/modemmanager/files/modemmanager.common
+++ b/net/modemmanager/files/modemmanager.common
@@ -20,7 +20,8 @@ MODEMMANAGER_EVENTS_CACHE="${MODEMMANAGER_RUNDIR}/events.cache"
 # Common logging
 
 mm_log() {
-	logger -t "ModemManager" "hotplug: $*"
+	local level="$1"; shift
+	logger -p "daemon.${level}" -t "ModemManager[$$]" "hotplug: $*"
 }
 
 ################################################################################
@@ -169,7 +170,7 @@ mm_wait_for_modem() {
 
 	while [ $n -ge 0 ]; do
 		[ -d "${sysfspath}" ] || {
-			mm_log "error: ignoring modem detection request: no device at ${sysfspath}"
+			mm_log "error" "ignoring modem detection request: no device at ${sysfspath}"
 			proto_set_available "${cfg}" 0
 			return 1
 		}
@@ -177,10 +178,10 @@ mm_wait_for_modem() {
 		# Check if the modem exists at the given sysfs path
 		if ! mmcli -m "${sysfspath}" > /dev/null 2>&1
 		then
-			mm_log "error: modem not detected at sysfs path"
+			mm_log "error" "modem not detected at sysfs path"
 		else
-			mm_log "modem exported successfully at ${sysfspath}"
-			mm_log "setting interface '${cfg}' as available"
+			mm_log "info" "modem exported successfully at ${sysfspath}"
+			mm_log "info" "setting interface '${cfg}' as available"
 			proto_set_available "${cfg}" 1
 			return 0
 		fi
@@ -189,7 +190,7 @@ mm_wait_for_modem() {
 		n=$((n-step))
 	done
 
-	mm_log "error: timed out waiting for the modem to get exported at ${sysfspath}"
+	mm_log "error" "timed out waiting for the modem to get exported at ${sysfspath}"
 	proto_set_available "${cfg}" 0
 	return 2
 }
@@ -201,7 +202,7 @@ mm_report_modem_wait() {
 
 	parent_sysfspath=$(mm_find_physdev_sysfs_path "$sysfspath")
 	[ -n "${parent_sysfspath}" ] || {
-		mm_log "error: parent device sysfspath not found"
+		mm_log "error" "parent device sysfspath not found"
 		return
 	}
 
@@ -212,23 +213,23 @@ mm_report_modem_wait() {
 
 			cfg=$(mm_get_modem_config "${parent_sysfspath}")
 			if [ -n "${cfg}" ]; then
-				mm_log "interface '${cfg}' is set to configure device '${parent_sysfspath}'"
-				mm_log "now waiting for modem at sysfs path ${parent_sysfspath}"
+				mm_log "info" "interface '${cfg}' is set to configure device '${parent_sysfspath}'"
+				mm_log "info" "now waiting for modem at sysfs path ${parent_sysfspath}"
 				mm_set_modem_wait_status "${parent_sysfspath}" "processed"
 				# Launch subshell for the explicit wait
 				( mm_wait_for_modem "${cfg}" "${parent_sysfspath}" ) > /dev/null 2>&1 &
 			else
-				mm_log "no need to wait for modem at sysfs path ${parent_sysfspath}"
+				mm_log "info" "no need to wait for modem at sysfs path ${parent_sysfspath}"
 				mm_set_modem_wait_status "${parent_sysfspath}" "ignored"
 			fi
 			;;
 		"processed")
-			mm_log "already waiting for modem at sysfs path ${parent_sysfspath}"
+			mm_log "info" "already waiting for modem at sysfs path ${parent_sysfspath}"
 			;;
 		"ignored")
 			;;
 		*)
-			mm_log "error: unknown status read for device at sysfs path ${parent_sysfspath}"
+			mm_log "error" "unknown status read for device at sysfs path ${parent_sysfspath}"
 			;;
 	esac
 }
@@ -258,7 +259,7 @@ mm_cleanup_interface_by_sysfspath() {
 	cfg=$(mm_get_modem_config "$dev")
 	[ -n "${cfg}" ] || return
 
-	mm_log "setting interface '$cfg' as unavailable"
+	mm_log "info" "setting interface '$cfg' as unavailable"
 	proto_set_available "${cfg}" 0
 }
 
@@ -286,7 +287,7 @@ mm_report_event() {
 	esac
 
 	# Report the event
-	mm_log "event reported: action=${action}, name=${name}, subsystem=${subsystem}"
+	mm_log "debug" "event reported: action=${action}, name=${name}, subsystem=${subsystem}"
 	mmcli --report-kernel-event="action=${action},name=${name},subsystem=${subsystem}" 1>/dev/null 2>&1 &
 
 	# Wait for added modem if a sysfspath is given
@@ -302,7 +303,7 @@ mm_report_event_from_cache_line() {
 	subsystem=$(echo "${event_line}" | awk -F ',' '{ print $3 }')
 	sysfspath=$(echo "${event_line}" | awk -F ',' '{ print $4 }')
 
-	mm_log "cached event found: action=${action}, name=${name}, subsystem=${subsystem}, sysfspath=${sysfspath}"
+	mm_log "debug" "cached event found: action=${action}, name=${name}, subsystem=${subsystem}, sysfspath=${sysfspath}"
 	mm_report_event "${action}" "${name}" "${subsystem}" "${sysfspath}"
 }
 
@@ -317,11 +318,11 @@ mm_report_events_from_cache() {
 	# Wait for ModemManager to be available in the bus
 	while [ $n -ge 0 ]; do
 		sleep $step
-		mm_log "checking if ModemManager is available..."
+		mm_log "info" "checking if ModemManager is available..."
 
 		if ! mmcli -L >/dev/null 2>&1
 		then
-			mm_log "ModemManager not yet available"
+			mm_log "info" "ModemManager not yet available"
 		else
 			mmrunning=1
 			break
@@ -330,7 +331,7 @@ mm_report_events_from_cache() {
 	done
 
 	[ ${mmrunning} -eq 1 ] || {
-		mm_log "error: couldn't report initial kernel events: ModemManager not running"
+		mm_log "error" "couldn't report initial kernel events: ModemManager not running"
 		return
 	}