Getting Revision Info from BNO

In the Adafruit_BNO055 library, there is this function

void getRevInfo(adafruit_bno055_rev_info_t *);

Full Adafruit_BNo055.h

/*!
 *  @file Adafruit_BNO055.h
 *
 *  This is a library for the BNO055 orientation sensor
 *
 *  Designed specifically to work with the Adafruit BNO055 Breakout.
 *
 *  Pick one up today in the adafruit shop!
 *  ------> https://www.adafruit.com/product/2472
 *
 *  These sensors use I2C to communicate, 2 pins are required to interface.
 *
 *  Adafruit invests time and resources providing this open source code,
 *  please support Adafruit andopen-source hardware by purchasing products
 *  from Adafruit!
 *
 *  K.Townsend (Adafruit Industries)
 *
 *  MIT license, all text above must be included in any redistribution
 */

#ifndef __ADAFRUIT_BNO055_H__
#define __ADAFRUIT_BNO055_H__

#include "Arduino.h"

#include "utility/imumaths.h"
#include <Adafruit_I2CDevice.h>
#include <Adafruit_Sensor.h>

/** BNO055 Address A **/
#define BNO055_ADDRESS_A (0x28)
/** BNO055 Address B **/
#define BNO055_ADDRESS_B (0x29)
/** BNO055 ID **/
#define BNO055_ID (0xA0)

/** Offsets registers **/
#define NUM_BNO055_OFFSET_REGISTERS (22)

/** A structure to represent offsets **/
typedef struct {
  int16_t accel_offset_x; /**< x acceleration offset */
  int16_t accel_offset_y; /**< y acceleration offset */
  int16_t accel_offset_z; /**< z acceleration offset */

  int16_t mag_offset_x; /**< x magnetometer offset */
  int16_t mag_offset_y; /**< y magnetometer offset */
  int16_t mag_offset_z; /**< z magnetometer offset */

  int16_t gyro_offset_x; /**< x gyroscrope offset */
  int16_t gyro_offset_y; /**< y gyroscrope offset */
  int16_t gyro_offset_z; /**< z gyroscrope offset */

  int16_t accel_radius; /**< acceleration radius */

  int16_t mag_radius; /**< magnetometer radius */
} adafruit_bno055_offsets_t;

/*!
 *  @brief  Class that stores state and functions for interacting with
 *          BNO055 Sensor
 */
class Adafruit_BNO055 : public Adafruit_Sensor {
public:
  /** BNO055 Registers **/
  typedef enum {
    /* Page id register definition */
    BNO055_PAGE_ID_ADDR = 0X07,

    /* PAGE0 REGISTER DEFINITION START*/
    BNO055_CHIP_ID_ADDR = 0x00,
    BNO055_ACCEL_REV_ID_ADDR = 0x01,
    BNO055_MAG_REV_ID_ADDR = 0x02,
    BNO055_GYRO_REV_ID_ADDR = 0x03,
    BNO055_SW_REV_ID_LSB_ADDR = 0x04,
    BNO055_SW_REV_ID_MSB_ADDR = 0x05,
    BNO055_BL_REV_ID_ADDR = 0X06,

    /* Accel data register */
    BNO055_ACCEL_DATA_X_LSB_ADDR = 0X08,
    BNO055_ACCEL_DATA_X_MSB_ADDR = 0X09,
    BNO055_ACCEL_DATA_Y_LSB_ADDR = 0X0A,
    BNO055_ACCEL_DATA_Y_MSB_ADDR = 0X0B,
    BNO055_ACCEL_DATA_Z_LSB_ADDR = 0X0C,
    BNO055_ACCEL_DATA_Z_MSB_ADDR = 0X0D,

    /* Mag data register */
    BNO055_MAG_DATA_X_LSB_ADDR = 0X0E,
    BNO055_MAG_DATA_X_MSB_ADDR = 0X0F,
    BNO055_MAG_DATA_Y_LSB_ADDR = 0X10,
    BNO055_MAG_DATA_Y_MSB_ADDR = 0X11,
    BNO055_MAG_DATA_Z_LSB_ADDR = 0X12,
    BNO055_MAG_DATA_Z_MSB_ADDR = 0X13,

    /* Gyro data registers */
    BNO055_GYRO_DATA_X_LSB_ADDR = 0X14,
    BNO055_GYRO_DATA_X_MSB_ADDR = 0X15,
    BNO055_GYRO_DATA_Y_LSB_ADDR = 0X16,
    BNO055_GYRO_DATA_Y_MSB_ADDR = 0X17,
    BNO055_GYRO_DATA_Z_LSB_ADDR = 0X18,
    BNO055_GYRO_DATA_Z_MSB_ADDR = 0X19,

    /* Euler data registers */
    BNO055_EULER_H_LSB_ADDR = 0X1A,
    BNO055_EULER_H_MSB_ADDR = 0X1B,
    BNO055_EULER_R_LSB_ADDR = 0X1C,
    BNO055_EULER_R_MSB_ADDR = 0X1D,
    BNO055_EULER_P_LSB_ADDR = 0X1E,
    BNO055_EULER_P_MSB_ADDR = 0X1F,

    /* Quaternion data registers */
    BNO055_QUATERNION_DATA_W_LSB_ADDR = 0X20,
    BNO055_QUATERNION_DATA_W_MSB_ADDR = 0X21,
    BNO055_QUATERNION_DATA_X_LSB_ADDR = 0X22,
    BNO055_QUATERNION_DATA_X_MSB_ADDR = 0X23,
    BNO055_QUATERNION_DATA_Y_LSB_ADDR = 0X24,
    BNO055_QUATERNION_DATA_Y_MSB_ADDR = 0X25,
    BNO055_QUATERNION_DATA_Z_LSB_ADDR = 0X26,
    BNO055_QUATERNION_DATA_Z_MSB_ADDR = 0X27,

    /* Linear acceleration data registers */
    BNO055_LINEAR_ACCEL_DATA_X_LSB_ADDR = 0X28,
    BNO055_LINEAR_ACCEL_DATA_X_MSB_ADDR = 0X29,
    BNO055_LINEAR_ACCEL_DATA_Y_LSB_ADDR = 0X2A,
    BNO055_LINEAR_ACCEL_DATA_Y_MSB_ADDR = 0X2B,
    BNO055_LINEAR_ACCEL_DATA_Z_LSB_ADDR = 0X2C,
    BNO055_LINEAR_ACCEL_DATA_Z_MSB_ADDR = 0X2D,

    /* Gravity data registers */
    BNO055_GRAVITY_DATA_X_LSB_ADDR = 0X2E,
    BNO055_GRAVITY_DATA_X_MSB_ADDR = 0X2F,
    BNO055_GRAVITY_DATA_Y_LSB_ADDR = 0X30,
    BNO055_GRAVITY_DATA_Y_MSB_ADDR = 0X31,
    BNO055_GRAVITY_DATA_Z_LSB_ADDR = 0X32,
    BNO055_GRAVITY_DATA_Z_MSB_ADDR = 0X33,

    /* Temperature data register */
    BNO055_TEMP_ADDR = 0X34,

    /* Status registers */
    BNO055_CALIB_STAT_ADDR = 0X35,
    BNO055_SELFTEST_RESULT_ADDR = 0X36,
    BNO055_INTR_STAT_ADDR = 0X37,

    BNO055_SYS_CLK_STAT_ADDR = 0X38,
    BNO055_SYS_STAT_ADDR = 0X39,
    BNO055_SYS_ERR_ADDR = 0X3A,

    /* Unit selection register */
    BNO055_UNIT_SEL_ADDR = 0X3B,

    /* Mode registers */
    BNO055_OPR_MODE_ADDR = 0X3D,
    BNO055_PWR_MODE_ADDR = 0X3E,

    BNO055_SYS_TRIGGER_ADDR = 0X3F,
    BNO055_TEMP_SOURCE_ADDR = 0X40,

    /* Axis remap registers */
    BNO055_AXIS_MAP_CONFIG_ADDR = 0X41,
    BNO055_AXIS_MAP_SIGN_ADDR = 0X42,

    /* SIC registers */
    BNO055_SIC_MATRIX_0_LSB_ADDR = 0X43,
    BNO055_SIC_MATRIX_0_MSB_ADDR = 0X44,
    BNO055_SIC_MATRIX_1_LSB_ADDR = 0X45,
    BNO055_SIC_MATRIX_1_MSB_ADDR = 0X46,
    BNO055_SIC_MATRIX_2_LSB_ADDR = 0X47,
    BNO055_SIC_MATRIX_2_MSB_ADDR = 0X48,
    BNO055_SIC_MATRIX_3_LSB_ADDR = 0X49,
    BNO055_SIC_MATRIX_3_MSB_ADDR = 0X4A,
    BNO055_SIC_MATRIX_4_LSB_ADDR = 0X4B,
    BNO055_SIC_MATRIX_4_MSB_ADDR = 0X4C,
    BNO055_SIC_MATRIX_5_LSB_ADDR = 0X4D,
    BNO055_SIC_MATRIX_5_MSB_ADDR = 0X4E,
    BNO055_SIC_MATRIX_6_LSB_ADDR = 0X4F,
    BNO055_SIC_MATRIX_6_MSB_ADDR = 0X50,
    BNO055_SIC_MATRIX_7_LSB_ADDR = 0X51,
    BNO055_SIC_MATRIX_7_MSB_ADDR = 0X52,
    BNO055_SIC_MATRIX_8_LSB_ADDR = 0X53,
    BNO055_SIC_MATRIX_8_MSB_ADDR = 0X54,

    /* Accelerometer Offset registers */
    ACCEL_OFFSET_X_LSB_ADDR = 0X55,
    ACCEL_OFFSET_X_MSB_ADDR = 0X56,
    ACCEL_OFFSET_Y_LSB_ADDR = 0X57,
    ACCEL_OFFSET_Y_MSB_ADDR = 0X58,
    ACCEL_OFFSET_Z_LSB_ADDR = 0X59,
    ACCEL_OFFSET_Z_MSB_ADDR = 0X5A,

    /* Magnetometer Offset registers */
    MAG_OFFSET_X_LSB_ADDR = 0X5B,
    MAG_OFFSET_X_MSB_ADDR = 0X5C,
    MAG_OFFSET_Y_LSB_ADDR = 0X5D,
    MAG_OFFSET_Y_MSB_ADDR = 0X5E,
    MAG_OFFSET_Z_LSB_ADDR = 0X5F,
    MAG_OFFSET_Z_MSB_ADDR = 0X60,

    /* Gyroscope Offset register s*/
    GYRO_OFFSET_X_LSB_ADDR = 0X61,
    GYRO_OFFSET_X_MSB_ADDR = 0X62,
    GYRO_OFFSET_Y_LSB_ADDR = 0X63,
    GYRO_OFFSET_Y_MSB_ADDR = 0X64,
    GYRO_OFFSET_Z_LSB_ADDR = 0X65,
    GYRO_OFFSET_Z_MSB_ADDR = 0X66,

    /* Radius registers */
    ACCEL_RADIUS_LSB_ADDR = 0X67,
    ACCEL_RADIUS_MSB_ADDR = 0X68,
    MAG_RADIUS_LSB_ADDR = 0X69,
    MAG_RADIUS_MSB_ADDR = 0X6A
  } adafruit_bno055_reg_t;

  /** BNO055 power settings */
  typedef enum {
    POWER_MODE_NORMAL = 0X00,
    POWER_MODE_LOWPOWER = 0X01,
    POWER_MODE_SUSPEND = 0X02
  } adafruit_bno055_powermode_t;

  /** Operation mode settings **/
  typedef enum {
    OPERATION_MODE_CONFIG = 0X00,
    OPERATION_MODE_ACCONLY = 0X01,
    OPERATION_MODE_MAGONLY = 0X02,
    OPERATION_MODE_GYRONLY = 0X03,
    OPERATION_MODE_ACCMAG = 0X04,
    OPERATION_MODE_ACCGYRO = 0X05,
    OPERATION_MODE_MAGGYRO = 0X06,
    OPERATION_MODE_AMG = 0X07,
    OPERATION_MODE_IMUPLUS = 0X08,
    OPERATION_MODE_COMPASS = 0X09,
    OPERATION_MODE_M4G = 0X0A,
    OPERATION_MODE_NDOF_FMC_OFF = 0X0B,
    OPERATION_MODE_NDOF = 0X0C
  } adafruit_bno055_opmode_t;

  /** Remap settings **/
  typedef enum {
    REMAP_CONFIG_P0 = 0x21,
    REMAP_CONFIG_P1 = 0x24, // default
    REMAP_CONFIG_P2 = 0x24,
    REMAP_CONFIG_P3 = 0x21,
    REMAP_CONFIG_P4 = 0x24,
    REMAP_CONFIG_P5 = 0x21,
    REMAP_CONFIG_P6 = 0x21,
    REMAP_CONFIG_P7 = 0x24
  } adafruit_bno055_axis_remap_config_t;

  /** Remap Signs **/
  typedef enum {
    REMAP_SIGN_P0 = 0x04,
    REMAP_SIGN_P1 = 0x00, // default
    REMAP_SIGN_P2 = 0x06,
    REMAP_SIGN_P3 = 0x02,
    REMAP_SIGN_P4 = 0x03,
    REMAP_SIGN_P5 = 0x01,
    REMAP_SIGN_P6 = 0x07,
    REMAP_SIGN_P7 = 0x05
  } adafruit_bno055_axis_remap_sign_t;

  /** A structure to represent revisions **/
  typedef struct {
    uint8_t accel_rev; /**< acceleration rev */
    uint8_t mag_rev;   /**< magnetometer rev */
    uint8_t gyro_rev;  /**< gyroscrope rev */
    uint16_t sw_rev;   /**< SW rev */
    uint8_t bl_rev;    /**< bootloader rev */
  } adafruit_bno055_rev_info_t;

  /** Vector Mappings **/
  typedef enum {
    VECTOR_ACCELEROMETER = BNO055_ACCEL_DATA_X_LSB_ADDR,
    VECTOR_MAGNETOMETER = BNO055_MAG_DATA_X_LSB_ADDR,
    VECTOR_GYROSCOPE = BNO055_GYRO_DATA_X_LSB_ADDR,
    VECTOR_EULER = BNO055_EULER_H_LSB_ADDR,
    VECTOR_LINEARACCEL = BNO055_LINEAR_ACCEL_DATA_X_LSB_ADDR,
    VECTOR_GRAVITY = BNO055_GRAVITY_DATA_X_LSB_ADDR
  } adafruit_vector_type_t;

  Adafruit_BNO055(int32_t sensorID = -1, uint8_t address = BNO055_ADDRESS_A,
                  TwoWire *theWire = &Wire);

  bool begin(adafruit_bno055_opmode_t mode = OPERATION_MODE_NDOF);
  void setMode(adafruit_bno055_opmode_t mode);
  void setAxisRemap(adafruit_bno055_axis_remap_config_t remapcode);
  void setAxisSign(adafruit_bno055_axis_remap_sign_t remapsign);
  void getRevInfo(adafruit_bno055_rev_info_t *);
  void setExtCrystalUse(boolean usextal);
  void getSystemStatus(uint8_t *system_status, uint8_t *self_test_result,
                       uint8_t *system_error);
  void getCalibration(uint8_t *system, uint8_t *gyro, uint8_t *accel,
                      uint8_t *mag);

  imu::Vector<3> getVector(adafruit_vector_type_t vector_type);
  imu::Quaternion getQuat();
  int8_t getTemp();

  /* Adafruit_Sensor implementation */
  bool getEvent(sensors_event_t *);
  bool getEvent(sensors_event_t *, adafruit_vector_type_t);
  void getSensor(sensor_t *);

  /* Functions to deal with raw calibration data */
  bool getSensorOffsets(uint8_t *calibData);
  bool getSensorOffsets(adafruit_bno055_offsets_t &offsets_type);
  void setSensorOffsets(const uint8_t *calibData);
  void setSensorOffsets(const adafruit_bno055_offsets_t &offsets_type);
  bool isFullyCalibrated();

  /* Power managments functions */
  void enterSuspendMode();
  void enterNormalMode();

private:
  byte read8(adafruit_bno055_reg_t);
  bool readLen(adafruit_bno055_reg_t, byte *buffer, uint8_t len);
  bool write8(adafruit_bno055_reg_t, byte value);

  Adafruit_I2CDevice *i2c_dev = NULL; ///< Pointer to I2C bus interface

  int32_t _sensorID;
  adafruit_bno055_opmode_t _mode;
};

#endif

Other functions such as

bool begin(adafruit_bno055_opmode_t mode = OPERATION_MODE_NDOF);

can be called by {object name}.begin. But when I try this same thing with this function, I get the error "No matching function for call to 'Adafruit_BNO055::getRevInfo()'

My Code:

#include <SPI.h>
#include <SD.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BNO055.h>

//Pins
#define batVoltagePin A0

//Consts
#define BNO055_SAMPLERATE_DELAY_MS 100 //This can be changed, Max for BNO is 10ms, or 100HZ

//Objects
File ActiveFile;
Adafruit_BNO055 BNOIMU = Adafruit_BNO055(55, 0x28); //I2C ID: 55 Address:0x28

//Variables
float battVoltage;

void setup() {
  Serial.begin(115200);
  SD.begin();
  BNOIMU.begin();
  BNOIMU.setExtCrystalUse(true);

  //Pin Modes
  pinMode(batVoltagePin, INPUT);

  //Tests
  SDTest();

  CalibrateBNO();
  DisplayBNODetailsStatus();

}

void loop() {
    battVoltage = GetBattVoltage();
}




void SDTest(){
  Serial.println("------------------------------------");
  Serial.println("Testing SD card");
  
    //Write Test File
    if (SD.begin()) {
      ActiveFile = SD.open("test.txt", FILE_WRITE);
      if (ActiveFile){
        Serial.println("  Writing 'testing 1, 2, 3' to test.txt");
        ActiveFile.println("  testing 1, 2, 3.");
        ActiveFile.close();
      } else { Serial.println("error opening test.txt");return;} // if the file didn't open, print an error:
    } else {
      Serial.println("Test failed, could not start SD");return;}

    //Read Test File
    ActiveFile = SD.open("test.txt");
    if (ActiveFile) {
      Serial.println("  test.txt:\n");
      Serial.println("*****");
      while (ActiveFile.available()) {                                // read from the file until there's nothing else in it:
          Serial.write(ActiveFile.read());
      }
      Serial.println("*****\n");
      ActiveFile.close();
    } else {Serial.println("Could not read from file");return;}     // if the file didn't open, print an error:
  SD.remove("test.txt");
  Serial.println("SD Test Complete");
  Serial.println("------------------------------------\n");
}

void CalibrateBNO(){
  Serial.println("Calibrating BNO\n"); 
}

void displayCalStatus(void){
    /* Get the four calibration values (0..3) */
    /* Any sensor data reporting 0 should be ignored, */
    /* 3 means 'fully calibrated" */
    uint8_t system, gyro, accel, mag;
    system = gyro = accel = mag = 0;
    bno.getCalibration(&system, &gyro, &accel, &mag);

    /* The data should be ignored until the system calibration is > 0 */
    Serial.print("\t");
    if (!system)
    {
        Serial.print("! ");
    }

    /* Display the individual values */
    Serial.print("Sys:");
    Serial.print(system, DEC);
    Serial.print(" G:");
    Serial.print(gyro, DEC);
    Serial.print(" A:");
    Serial.print(accel, DEC);
    Serial.print(" M:");
    Serial.print(mag, DEC);
}

void DisplayBNODetailsStatus(void){
    sensor_t sensor;
    BNOIMU.getSensor(&sensor);

    /* Get the system status values (mostly for debugging purposes) */
    uint8_t system_status, self_test_results, system_error;
    system_status = self_test_results = system_error = 0;
    BNOIMU.getSystemStatus(&system_status, &self_test_results, &system_error);
    
    Serial.println("------------------------------------");
    Serial.print("Sensor:                                         "); Serial.println(sensor.name);
    Serial.print("System Status(0:Idle,1:Error,5:Fusion Running): 0x");Serial.println(system_status, HEX);
    Serial.print("Self Test(MCU,GYR,MAG,ACC - _ _ _ _):           0x");Serial.println(self_test_results, HEX);
    Serial.println("------------------------------------");
    delay(500);
}

void CollectData(){
  imu::Vector<3> acc=BNOIMU.getVector(Adafruit_BNO055::VECTOR_ACCELEROMETER); //in m/2
  imu::Vector<3> gyr=BNOIMU.getVector(Adafruit_BNO055::VECTOR_GYROSCOPE);  //in radians/s
  imu::Vector<3> mag=BNOIMU.getVector(Adafruit_BNO055::VECTOR_MAGNETOMETER); // in uT
}

float GetBattVoltage(){
   /* 
   *  Reference (4.98) voltage - 1024 maximum samples = voltage per count
   *  analogRead(batVoltagePin) returns count #
   *  *2 -> voltage divider ratio (10khom and 10kohm)
   */
  return (((4.98/1024)*analogRead(batVoltagePin))*2);
}

What am I doing wrong?

Please post the code, using code tags. ALL of it.

Use CTRL-T to autoformat it, before copy/paste.

I don't see code tags button.

"</>" post editor button.

The code you posted does not appear to call the getRevInfo function.