ALSA: usb-audio: add support for E-Mu Tracker Pre

Add support for the E-Mu "Tracker Pre" USB sound card, following
the example of the (very similar) E-Mu 0202 and E-Mu 0404 USB.

As with the 0202 and 0404 USB, functionality is very limited:
just a couple of sample rates, no volume/mute control, etc.

Signed-off-by: Eran Tromer <eran@tromer.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h
index 3f68359..d96bf8b2 100644
--- a/sound/usb/usbquirks.h
+++ b/sound/usb/usbquirks.h
@@ -62,6 +62,13 @@
 	.idProduct = 0x3f04,
 	.bInterfaceClass = USB_CLASS_AUDIO,
 },
+{
+	/* E-Mu Tracker Pre */
+	.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
+	.idVendor = 0x041e,
+	.idProduct = 0x3f0a,
+	.bInterfaceClass = USB_CLASS_AUDIO,
+},
 
 /*
  * Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface