--- /dev/null
+#ifndef DDK750_HWI2C_H__
+#define DDK750_HWI2C_H__
+
+/* hwi2c functions */
+int hwI2CInit(unsigned char busSpeedMode);
+void hwI2CClose(void);
+
+unsigned char hwI2CReadReg(unsigned char deviceAddress,unsigned char registerIndex);
+int hwI2CWriteReg(unsigned char deviceAddress,unsigned char registerIndex,unsigned char data);
+#endif