Documentation/devicetree/bindings/iio/humidity/ti,hdc3020.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iio/humidity/ti,hdc3020.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/iio/humidity/ti,hdc3020.yaml
Extension
.yaml
Size
1375 bytes
Lines
64
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/humidity/ti,hdc3020.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: HDC3020/HDC3021/HDC3022 humidity and temperature iio sensors

maintainers:
  - Li peiyu <579lpy@gmail.com>
  - Javier Carrasco <javier.carrasco.cruz@gmail.com>

description:
  https://www.ti.com/lit/ds/symlink/hdc3020.pdf

  The HDC302x is an integrated capacitive based relative humidity (RH)
  and temperature sensor.

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - ti,hdc3021
              - ti,hdc3022
          - const: ti,hdc3020
      - const: ti,hdc3020

  interrupts:
    maxItems: 1

  vdd-supply: true

  reg:
    maxItems: 1

  reset-gpios:
    maxItems: 1

required:
  - compatible
  - reg
  - vdd-supply

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        humidity-sensor@47 {
            compatible = "ti,hdc3021", "ti,hdc3020";
            reg = <0x47>;
            vdd-supply = <&vcc_3v3>;
            interrupt-parent = <&gpio3>;
            interrupts = <23 IRQ_TYPE_EDGE_RISING>;
            reset-gpios = <&gpio3 27 GPIO_ACTIVE_LOW>;
        };
    };

Annotation

Implementation Notes