diff -r b74b0e4902c3 -r ad2c8b13eb88 main/task_sdcard.h
--- a/main/task_sdcard.h	Sat Oct 20 13:23:15 2018 +0200
+++ b/main/task_sdcard.h	Sat Oct 20 17:09:48 2018 +0200
@@ -7,6 +7,9 @@
  */
 
 
+/**
+ * @brief Annotation types for the log graph.
+ */
 typedef enum
 {
     ANNOTATION_STAGE = 0,		///< Annotate stage event
@@ -73,6 +76,14 @@
 void log_annotation(int annotation_type, char *label);
 
 /**
+ * @brief Copy one file.
+ * @param ff The from filename
+ * @param tf The to filename
+ * @return 0 if success.
+ */
+int FileCopy(char *ff, char *tf);
+
+/**
  * @brief FreeRTOS sd card task. 
  */
 void task_sdcard(void *);