diff --git a/sound/usb/usx2y/us122l.h b/sound/usb/usx2y/us122l.h
new file mode 100644
index 0000000..3d10c4b
--- /dev/null
+++ b/sound/usb/usx2y/us122l.h
@@ -0,0 +1,27 @@
+#ifndef US122L_H
+#define US122L_H
+
+
+struct us122l {
+	struct snd_usb_audio 	chip;
+	int			stride;
+	struct usb_stream_kernel sk;
+
+	struct mutex		mutex;
+	struct file		*first;
+	unsigned		second_periods_polled;
+	struct file		*master;
+	struct file		*slave;
+
+	atomic_t		mmap_count;
+};
+
+
+#define US122L(c) ((struct us122l *)(c)->private_data)
+
+#define NAME_ALLCAPS "US-122L"
+
+#define USB_ID_US122L 0x800E
+#define USB_ID_US144 0x800F
+
+#endif