diff --git a/hwdb.d/80-ieee1394-unit-function.hwdb b/hwdb.d/80-ieee1394-unit-function.hwdb
index 01c359004d..6c05c61e7b 100644
--- a/hwdb.d/80-ieee1394-unit-function.hwdb
+++ b/hwdb.d/80-ieee1394-unit-function.hwdb
@@ -830,3 +830,111 @@ ieee1394:ven0000022Emo00000000sp0000022Ever00800000
   ID_MODEL_FROM_DATABASE=FW-1884
   IEEE1394_UNIT_FUNCTION_MIDI=1
   IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+#
+# Mark of the Unicorn FireWire series.
+#
+# The model field in unit directory should be ignored since it expresses firmware version.
+#
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000001
+ieee1394:ven000001F2mo*sp000001F2ver00000001
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 828
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000002
+ieee1394:ven000001F2mo*sp000001F2ver00000002
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 896
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000003
+ieee1394:ven000001F2mo*sp000001F2ver00000003
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 828 mkII
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000005
+ieee1394:ven000001F2mo*sp000001F2ver00000005
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 896 HD
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000009
+ieee1394:ven000001F2mo*sp000001F2ver00000009
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=Traveler
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x00000d
+ieee1394:ven000001F2mo*sp000001F2ver0000000D
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=UltraLite
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x00000f
+ieee1394:ven000001F2mo*sp000001F2ver0000000F
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 8pre
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000015
+ieee1394:ven000001F2mo*sp000001F2ver00000015
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 828 mk3 FireWire
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000017
+ieee1394:ven000001F2mo*sp000001F2ver00000017
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 896 mk3 FireWire
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000019
+ieee1394:ven000001F2mo*sp000001F2ver00000019
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=UltraLite mk3 FireWire
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x00001b
+ieee1394:ven000001F2mo*sp000001F2ver0000001B
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=Traveler mk3
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000030
+ieee1394:ven000001F2mo*sp000001F2ver00000030
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=UltraLite mk3 Hybrid
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000033
+ieee1394:ven000001F2mo*sp000001F2ver00000033
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=Audio Express
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000035
+ieee1394:ven000001F2mo*sp000001F2ver00000035
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 828 mk3 Hybrid
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1
+
+ieee1394:node:ven0x0001f2units0x0001f2:0x000045
+ieee1394:ven000001F2mo*sp000001F2ver00000045
+  ID_VENDOR_FROM_DATABASE=MOTU
+  ID_MODEL_FROM_DATABASE=MOTU 4pre
+  IEEE1394_UNIT_FUNCTION_MIDI=1
+  IEEE1394_UNIT_FUNCTION_AUDIO=1