ALSA: usb/6fire - Driver for TerraTec DMX 6Fire USB

What is working: Everything except SPDIF
- Hardware Master volume
- PCM 44-192kHz@24 bits, 6 channels out, 4 channels in (analog)
- MIDI in/out
- firmware loading after cold start
- phono/line switching

Signed-off-by: Torsten Schenk <torsten.schenk@zoho.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/usb/Kconfig

@@ -97,5 +97,21 @@ config SND_USB_US122L
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-usb-us122l.
 
+config SND_USB_6FIRE
+        tristate "TerraTec DMX 6Fire USB"
+        depends on EXPERIMENTAL
+        select FW_LOADER
+        select SND_RAWMIDI
+        select SND_PCM
+        help
+          Say Y here to include support for TerraTec 6fire DMX USB interface.
+
+          You will need firmware files in order to be able to use the device
+          after it has been coldstarted. This driver currently does not support
+          firmware loading for all devices. If you own such a device,
+          you could start windows and let the windows driver upload
+          the firmware. As long as you do not unplug your device from power,
+          it should be usable.
+
 endif	# SND_USB