Legal Removal Request

Post: I am able to use i2cdetect -y -r 1 to see that the ADC Differential Pi is located at i2c addresses 68 and 69 as expected. I now want to use i2cget and i2cset to configure the device and read results from the ADC. Both functions take the i2c address of 68 and 69 and then expect a data address (and write value in the case of i2cset). The data sheet refers to a configuration register but does not discuss anything in the context of data addresses such as are used with i2cget/i2cset. The data sheet also indicates that the power on default value for the configuration register will be 0x90. When I do i2cdump -y 1 0x68 I do not see any values displayed with the setting 0x90. I see all 0xFFs for byte mode or 0xDCFF if I do word mode. Is it possible to use i2cget/i2cset to access the ADC results and set the configuration data? If so, how?