ROHM BU27008 RGB + C/IR

The ROHM BU27008 is a sensor with 5 photodiodes (red, green, blue, clear and IR) with four configurable channels. Red and green being always available and two out of the rest three (blue, clear, IR) can be selected to be simultaneously measured. Typical application is adjusting LCD backlight of TVs, mobile phones and tablet PCs.

Linux Driver

The ROHM Finland SWDC has created an IIO driver in collaboration with the Linux kernel community. Driver was merged to the upstream Linux v6.5.

Support for computing lux values was added in the Linux v6.8

Devicetree example:

    i2c {
      #address-cells = <1>;
      #size-cells = <0>;
      light-sensor@38 {
        compatible = rohm,bu27008;
        reg = <0x38>;
      };
    };

Where,

• “compatible” must be “rohm,bu27008” for the BU27008.
• “reg” must be device’s I2C address.

See the binding document for more information.

Support

Please use the regular upstream maintenance information for support. The maintenance information can be found from the linux MAINTAINERS file. You can read the MAINTAINERS manually or use the get_maintainer.pl