v4.19.13 snapshot.
diff --git a/sound/pci/ctxfi/ctpcm.h b/sound/pci/ctxfi/ctpcm.h
new file mode 100644
index 0000000..178da0d
--- /dev/null
+++ b/sound/pci/ctxfi/ctpcm.h
@@ -0,0 +1,27 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File ctpcm.h
+ *
+ * @Brief
+ * This file contains the definition of the pcm device functions.
+ *
+ * @Author Liu Chun
+ * @Date Mar 28 2008
+ *
+ */
+
+#ifndef CTPCM_H
+#define CTPCM_H
+
+#include "ctatc.h"
+
+int ct_alsa_pcm_create(struct ct_atc *atc,
+ enum CTALSADEVS device,
+ const char *device_name);
+
+#endif /* CTPCM_H */