and further help can be found at
http://sixfireusb.sourceforge.net
+config SND_USB_HIFACE
+ tristate "M2Tech hiFace USB-SPDIF driver"
+ select SND_PCM
+ help
+ Select this option to include support for M2Tech hiFace USB-SPDIF
+ interface.
+
+ This driver supports the original M2Tech hiFace and some other
+ compatible devices. The supported products are:
+
+ * M2Tech Young
+ * M2Tech hiFace
+ * M2Tech North Star
+ * M2Tech W4S Young
+ * M2Tech Corrson
+ * M2Tech AUDIA
+ * M2Tech SL Audio
+ * M2Tech Empirical
+ * M2Tech Rockna
+ * M2Tech Pathos
+ * M2Tech Metronome
+ * M2Tech CAD
+ * M2Tech Audio Esclusive
+ * M2Tech Rotel
+ * M2Tech Eeaudio
+ * The Chord Company CHORD
+ * AVA Group A/S Vitus
+
+ To compile this driver as a module, choose M here: the module
+ will be called snd-usb-hiface.
+
endif # SND_USB