diff --git a/vpdecc/vpdecc_support.h b/vpdecc/vpdecc_support.h
new file mode 100644
index 0000000..6f71c03
--- /dev/null
+++ b/vpdecc/vpdecc_support.h
@@ -0,0 +1,45 @@
+#include "vpdecc.h"
+
+/******************************************************************************/
+unsigned char seepromGetEcc(const unsigned char* data);
+
+/******************************************************************************/
+/* seepromScramble                                                            */
+/******************************************************************************/
+
+int seepromScramble(const int bitOffset, const unsigned char* cleanData,
+                    size_t cleanSize, unsigned char* scrambledData,
+                    size_t scrambledSize);
+
+/******************************************************************************/
+/******************************************************************************/
+int seepromUnscramble(const int bitOffset, const unsigned char* scrambledData,
+                      size_t scrambledSize, unsigned char* cleanData,
+                      size_t cleanSize);
+
+/******************************************************************************/
+/******************************************************************************/
+void seepromGenCsDecode(const unsigned char numBits,
+                        const unsigned char syndrom,
+                        const unsigned char* csdSyndroms,
+                        unsigned char* vResult);
+
+/******************************************************************************/
+/* seepromGenerateCheckSyndromDecode                                          */
+/******************************************************************************/
+void seepromGenerateCheckSyndromDecode(const unsigned char checkSyndrom,
+                                       unsigned char* csdData,
+                                       unsigned char* csdEcc);
+
+/******************************************************************************/
+/******************************************************************************/
+int seepromEccCheck(unsigned char* vData, unsigned char* vEcc,
+                    size_t numOfDataBytes);
+
+/******************************************************************************/
+/******************************************************************************/
+/*int seepromCheckData(unsigned char* seepromData);*/
+
+/******************************************************************************/
+/******************************************************************************/
+/*int seepromCreateEcc(unsigned char* seepromData);*/