[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/usb/stream.h b/src/kernel/linux/v4.14/sound/usb/stream.h
new file mode 100644
index 0000000..d92e18d
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/usb/stream.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __USBAUDIO_STREAM_H
+#define __USBAUDIO_STREAM_H
+
+int snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
+ int iface_no);
+
+int snd_usb_add_audio_stream(struct snd_usb_audio *chip,
+ int stream,
+ struct audioformat *fp);
+
+#endif /* __USBAUDIO_STREAM_H */
+