1mcp3021 properties 2 3Required properties: 4- compatible: Must be one of the following: 5 - "microchip,mcp3021" for mcp3021 6 - "microchip,mcp3221" for mcp3221 7- reg: I2C address 8 9Optional properties: 10 11- reference-voltage-microvolt 12 Reference voltage in microvolt (uV) 13 14Example: 15 16mcp3021@4d { 17 compatible = "microchip,mcp3021"; 18 reg = <0x4d>; 19 20 reference-voltage-microvolt = <4500000>; /* 4.5 V */ 21}; 22