I'm working with a MBa6ULX board which have an TQMA6ULx. The board has an 8bit I/O port i2c with three buttons. I'm trying to get the status of these buttons by console. The I2c device has 0x21 address.
If I execute the command i2cdetect -y 3 I get the next info:
If I try to read the registers of the 0x21 device:
Why I get the UU in the address of my I2C devices?