Hi, We are using "i2c-tools (3.1.1)" and we have 2 questions: (01 ) When I send cmd “i2cdetect -y -r 2”, I find that some device address always shows “UU”. What “UU” means? When I used i2cdump to that address (showing “UU”), it always came out “XXXX”. Can I i2cdump it? Is there any document about that? (02 ) If I need to i2cget/i2cset to an device with “word-address (address with 16 bits)”, how can I do? Is there any document? Can you show me a real example? Best, Tarker