public byte[] I2CReadBytes(int handle, int num)
{
byte[] data = new byte[num];
GCHandle h = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
short ret = PiGpioNativeMethods.i2cReadDevice((ushort)handle, h.AddrOfPinnedObject(), (ushort)num);
if (ret < 0)
{
throw new PiGPIOException(ret);
}
if (ret < num)
{
byte[] real = new byte[ret];
Array.Copy(data, real, ret);
return(real);
}
else
{
return(data);
}
}
finally
{
h.Free();
}
}