status/volume: Document public function

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2380>

diff --git a/js/ui/status/volume.js b/js/ui/status/volume.js
index 744d650e9b11c0c2c4fb61f747c2b05eefa91295..bbbfb454bee6890c62b186217ad1289d8d9375cf 100644 (file)
--- a/js/ui/status/volume.js
+++ b/js/ui/status/volume.js
@@ -19,6 +19,9 @@ const VolumeType = {
 // Each Gvc.MixerControl is a connection to PulseAudio,
 // so it's better to make it a singleton
 let _mixerControl;
+/**
+ * @returns {Gvc.MixerControl} - the mixer control singleton
+ */
 function getMixerControl() {
     if (_mixerControl)
         return _mixerControl;