US_SC_DEVICE, US_PR_BULK, NULL,
                US_FL_NEED_OVERRIDE ),
 
+/* Reported by Filippo Bardelli <filibard@libero.it>
+ * The device reports a subclass of RBC, which is wrong.
+ */
+UNUSUAL_DEV(  0x090a, 0x1050, 0x0100, 0x0100,
+               "Trumpion Microelectronics, Inc.",
+               "33520 USB Digital Voice Recorder",
+               US_SC_UFI, US_PR_DEVICE, NULL,
+               0),
+
 /* Trumpion Microelectronics MP3 player (felipe_alfaro@linuxmail.org) */
 UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999,
                "Trumpion",