+#ifndef __LFSAMPLING_H
+#define __LFSAMPLING_H
+
+#include "proxmark3.h"
+#include "apps.h"
+#include "util.h"
+#include "string.h"
+#include "usb_cdc.h" // for usb_poll_validate_length
+#include "ticks.h" // for StartTicks
+
+typedef struct BitstreamOut BitstreamOut;
+
+/**
+* acquisition of Cotag LF signal. Similar to other LF, since the Cotag has such long datarate RF/384
+* and is Manchester?, we directly gather the manchester data into bigbuff
+**/
+void doCotagAcquisition(size_t sample_size);
+uint32_t doCotagAcquisitionManchester(void);