Documentation/devicetree/bindings/trivial-devices.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/trivial-devices.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/trivial-devices.yaml
Extension: .yaml
Size: 22837 bytes
Lines: 544
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.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Touches IRQ or DMA behavior; this matters for the representative real-device path.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/trivial-devices.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Trivial I2C and SPI devices

maintainers:
  - Rob Herring <robh@kernel.org>

description: |
  This is a list of trivial I2C and SPI devices that have simple device tree
  bindings, consisting only of a compatible field, an address and possibly an
  interrupt line.

  If a device needs more specific bindings, such as properties to
  describe some aspect of it, there needs to be a specific binding
  document for it just like any other devices.

properties:
  reg:
    maxItems: 1
  interrupts:
    maxItems: 1

  spi-max-frequency: true

  compatible:
    items:
      # Entries are sorted alphanumerically by the compatible
      - enum:
            # ABB register based spi sensors
          - abb,spi-sensor
            # Acbel fsg032 power supply
          - acbel,fsg032
            # SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin
          - ad,ad7414  # Deprecated, use adi,ad7414
          - adi,ad7414
            # ADM9240: Complete System Hardware Monitor for uProcessor-Based Systems
          - ad,adm9240
            # AD5110 - Nonvolatile Digital Potentiometer
          - adi,ad5110
            # Temperature sensor with integrated fan control
          - adi,adm1027
            # Analog Devices ADT7410 High Accuracy Digital Temperature Sensor
          - adi,adt7410
            # Analog Devices ADT7411 Temperature Sensor and 8-channel ADC
          - adi,adt7411
            # Analog Devices ADT7420 High Accuracy Digital Temperature Sensor
          - adi,adt7420
            # Analog Devices ADT7422 High Accuracy Digital Temperature Sensor
          - adi,adt7422
            # Temperature sensor with integrated fan control
          - adi,adt7463
            # Temperature sensor with integrated fan control
          - adi,adt7468
            # Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher
          - adi,lt7182s
            # AMS iAQ-Core VOC Sensor
          - ams,iaq-core
            # Aosong temperature & humidity sensors with I2C interface
          - aosong,aht10
          - aosong,aht20
          - aosong,dht20
            # Arduino microcontroller interface over SPI on UnoQ board
          - arduino,unoq-mcu
            # Temperature monitoring of Astera Labs PT5161L PCIe retimer
          - asteralabs,pt5161l
            # ATECC508A - i2c h/w elliptic curve crypto module

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.
IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.