public class I2CDevice : IDisposable

    {

        public I2CDevice.Configuration Config;

        protected bool m_disposed;

        public I2CDevice(I2CDevice.Configuration config);

        public static I2CDevice.I2CReadTransaction CreateReadTransaction(byte[] buffer);

        public static I2CDevice.I2CWriteTransaction CreateWriteTransaction(byte[] buffer);

        public void Dispose();

        public int Execute(I2CDevice.I2CTransaction[] xActions, int timeout);

        public class Configuration

        {

            public readonly ushort Address;

            public readonly int ClockRateKhz;

            public Configuration(ushort address, int clockRateKhz);

        }

        public sealed class I2CReadTransaction : I2CDevice.I2CTransaction{}

        public class I2CTransaction

        {

            public readonly byte[] Buffer;

            protected I2CTransaction(byte[] buffer);

        }

        public sealed class I2CWriteTransaction : I2CDevice.I2CTransaction{}

   }

  public static void Main()

      {

           I2CDevice I2CBus = new I2CDevice(new I2CDevice.Configuration(0x48, 100));

            byte[] bytAD = new byte[4];

            byte bytDA = 0;

            while (true)

            {

                for (byte i = 0; i < 4; i++)

                {

                    byte[] bytWData = new byte[1] { i };

                    byte[] bytRData = new byte[1];

                    I2CDevice.I2CTransaction[] i2c = new I2CDevice.I2CTransaction[2];

                    i2c[0] = I2CDevice.CreateWriteTransaction(bytWData);

                    i2c[1] = I2CDevice.CreateReadTransaction(bytRData);

                    I2CBus.Execute(i2c, 100);

                    bytAD[i - 1 < 0 ? 3 : i - 1] = bytRData[0];

                }

                Debug.Print("AD0=" + ShowData(bytAD[0]) + " AD1=" + ShowData(bytAD[1]) + " AD2=" + ShowData(bytAD[2]) + " AD3=" + ShowData(bytAD[3]));

                byte[] bytWData1 = new byte[2] { 0x40, bytDA };

                I2CDevice.I2CTransaction[] i2c1 = new I2CDevice.I2CTransaction[1];

                i2c1[0] = I2CDevice.CreateWriteTransaction(bytWData1);

                I2CBus.Execute(i2c1, 100);

                Debug.Print("DA0=" + ShowData(bytDA));

                bytDA += 10;

                Thread.Sleep(1000);

            }

        }