I2C sample code rewriting in Wire

Using Arduino Networking, Protocols, and Devices
7

Now it works. I didn't know that read/write bits are set by the library. Another problem was the endTransmission. In Arduino v1.0.1 this method can be called with the false flag. So no stop condition is sent.

Device address is 0x44.

byte get_register(byte memory_address) {
  Wire.beginTransmission(DEVICE_ADDRESS);
  Wire.write(memory_address);
  Wire.endTransmission(false);
  Wire.requestFrom(DEVICE_ADDRESS, 1);
  if (Wire.available() > 0) {
    return Wire.read();
  }
  return 0;
}

Thanks again for your help.