Documentation/devicetree/bindings/usb/usb251xb.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/usb/usb251xb.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/usb/usb251xb.yaml
Extension: .yaml
Size: 7894 bytes
Lines: 279
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.

Dependency Surface

dt-bindings/gpio/gpio.h

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/usb/usb251xb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Microchip USB 2.0 Hi-Speed Hub Controller

maintainers:
  - Richard Leitner <richard.leitner@skidata.com>

properties:
  compatible:
    enum:
      - microchip,usb2422
      - microchip,usb2512b
      - microchip,usb2512bi
      - microchip,usb2513b
      - microchip,usb2513bi
      - microchip,usb2514b
      - microchip,usb2514bi
      - microchip,usb2517
      - microchip,usb2517i
      - microchip,usb251xb

  reg:
    maxItems: 1

  reset-gpios:
    description: |
      Should specify the gpio for hub reset

  vdd-supply:
    description: |
      Should specify the phandle to the regulator supplying vdd

  skip-config:
    $ref: /schemas/types.yaml#/definitions/flag
    description: |
      Skip Hub configuration, but only send the USB-Attach command

  vendor-id:
    $ref: /schemas/types.yaml#/definitions/uint16
    default: 0x0424
    description: |
      Set USB Vendor ID of the hub

  product-id:
    $ref: /schemas/types.yaml#/definitions/uint16
    description: |
      Set USB Product ID of the hub

  device-id:
    $ref: /schemas/types.yaml#/definitions/uint16
    default: 0x0bb3
    description: |
      Set USB Device ID of the hub

  language-id:
    $ref: /schemas/types.yaml#/definitions/uint16
    default: 0x0000
    description: |
      Set USB Language ID

  manufacturer:
    $ref: /schemas/types.yaml#/definitions/string
    description: |
      Set USB Manufacturer string (max 31 characters long)

  product:

Annotation

Immediate include surface: `dt-bindings/gpio/gpio.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

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.