[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/usb/mixer_scarlett.h b/src/kernel/linux/v4.14/sound/usb/mixer_scarlett.h
new file mode 100644
index 0000000..bbf063b
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/usb/mixer_scarlett.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __USB_MIXER_SCARLETT_H
+#define __USB_MIXER_SCARLETT_H
+
+int snd_scarlett_controls_create(struct usb_mixer_interface *mixer);
+
+#endif /* __USB_MIXER_SCARLETT_H */