diff --git a/vn-interface/include/vn-interface/helper.h b/vn-interface/include/vn-interface/helper.h
index b4bf313..0285a40 100644
--- a/vn-interface/include/vn-interface/helper.h
+++ b/vn-interface/include/vn-interface/helper.h
@@ -1,5 +1,5 @@
-#ifndef _VN200_
-#define _VN200_
+#ifndef _VN_HELPER_H_
+#define _VN_HELPER_H_
 
 #include <map>
 #include <stdint.h>
@@ -12,10 +12,10 @@ namespace vn {
 
 const uint8_t ImuMeasurementsRegisterID = 54;
 
-/* TODO */
+/** \brief TODO */
 union header_t {
   struct request_t {
-    uint8_t Cmd = 0;    /* Defined in VN200_SPI_READ - set in standard constructor */
+    uint8_t Cmd = 0;    /* Defined in VN_SPI_READ */
     uint8_t ID = 0;     /* Register ID */
     uint16_t Empty = 0; /* Spacer */
     request_t(uint8_t ID, uint8_t Cmd) {
@@ -25,37 +25,30 @@ union header_t {
   };
   struct response_t {
     uint8_t Empty1 = 0; /* Spacer */
-    uint8_t Cmd = 0;    /* Defined in VN200_SPI_READ - set in standard constructor */
+    uint8_t Cmd = 0;    /* Defined in VN_SPI_READ */
     uint8_t ID = 0;     /* Register ID */
     uint8_t Empty2 = 0; /* Spacer */
     response_t(){};
-    response_t(uint8_t ID, uint8_t Cmd) {
-      this->ID = ID;
-      this->Cmd = Cmd;
-    };
   };
 };
 
-/* Writes the desired payload into the specified register */
+/** \brief Requests the specified register to write the payload into it */
 template <typename payload_t> struct pkg_request_write_t {
   struct header_t::request_t header;
   payload_t payload;
-  /* TODO */
   pkg_request_write_t(uint8_t ID) : header(ID, VN_SPI_WRITE){};
 };
 
-/* Writes the desired payload into the specified register */
+/** \brief Requests the specified register to read from */
 struct pkg_request_read_t {
   struct header_t::request_t header;
-  /* TODO */
   pkg_request_read_t(uint8_t ID) : header(ID, VN_SPI_READ){};
 };
 
-/* Writes the desired payload into the specified register */
+/** \brief Response structure for the specified register */
 template <typename payload_t> struct pkg_response_t {
   struct header_t::response_t header;
   payload_t payload;
-  /* TODO */
   pkg_response_t() : header(){};
 };