+#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 T55x7 LF signal. Similart to other LF, but adjusted with @marshmellows thresholds
+* the data is collected in BigBuf.
+**/
+void doT55x7Acquisition(size_t sample_size);