+#include <stdint.h>
+
+struct pcf7931_config{
+ uint8_t Pwd[7];
+ uint16_t InitDelay;
+ int16_t OffsetWidth;
+ int16_t OffsetPosition;
+};
+
+int pcf7931_resetConfig();
+int pcf7931_printConfig();
+
+int usage_pcf7931_read();
+int usage_pcf7931_write();
+int usage_pcf7931_bruteforce();
+int usage_pcf7931_config();
+