Documentation/devicetree/bindings/rng/timeriomem_rng.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/rng/timeriomem_rng.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/rng/timeriomem_rng.yaml
Extension
.yaml
Size
1198 bytes
Lines
49
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.

Dependency Surface

Detected Declarations

Annotated Snippet

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

title: TimerIO Random Number Generator

maintainers:
  - Krzysztof Kozlowski <krzk@kernel.org>

properties:
  compatible:
    const: timeriomem_rng

  period:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: wait time in microseconds to use between samples

  quality:
    $ref: /schemas/types.yaml#/definitions/uint32
    default: 0
    description:
      Estimated number of bits of true entropy per 1024 bits read from the rng.
      Defaults to zero which causes the kernel's default quality to be used
      instead.  Note that the default quality is usually zero which disables
      using this rng to automatically fill the kernel's entropy pool.

  reg:
    maxItems: 1
    description:
      Base address to sample from. Currently 'reg' must be at least four bytes
      wide and 32-bit aligned.

required:
  - compatible
  - period
  - reg

additionalProperties: false

examples:
  - |
    rng@44 {
        compatible = "timeriomem_rng";
        reg = <0x44 0x04>;
        period = <1000000>;
    };

Annotation

Implementation Notes