diff --git a/ucm2/USB-Audio/Realtek/ALC4080-HiFi.conf b/ucm2/USB-Audio/Realtek/ALC4080-HiFi.conf
index e3c8a24..6719ebe 100644
--- a/ucm2/USB-Audio/Realtek/ALC4080-HiFi.conf
+++ b/ucm2/USB-Audio/Realtek/ALC4080-HiFi.conf
@@ -1,3 +1,13 @@
+#
+# Jack controls:
+#  "Speaker - Output Jack"
+#  "Headphone - Output Jack"
+#  "IEC958 In - Output Jack"
+#  "Headset - Input Jack"
+#  "Mic - Input Jack"
+#  "Line - Input Jack"
+#
+
 Define {
 	SpeakerMixer "PCM"
 	SpeakerMindex "0"