LIS3DH Analog input?

Hi All,
I'm wanting to use the LIS3DH analog inputs along with accelerometer. I'm getting totally lost on addressing, it would appear. When I set it up using the LIS3DH module using the default address and read the accelerometer, everything is fine. When I try the following setup, I2C1.read returns a timeout error.

Gotta be something very simple that I'm doing wrong; help?

Thanks!

I2C1.setup({sda:B7, scl:B6});

var addr = 0x18; //chip addr
read = function(reg, len) {
  I2C1.writeTo(addr, reg);
  return I2C1.readFrom(addr, len);
};
write = function(reg, data) {
  I2C1.writeTo(addr, [reg, data]);
};


console.log(read(0x08,2));