Documentation/translations/zh_TW/filesystems/sysfs.txt

File Facts

System

Linux kernel

Corpus path

Documentation/translations/zh_TW/filesystems/sysfs.txt

Extension

.txt

Size

12594 bytes

Lines

378

Domain

Support Tooling And Documentation

Bucket

Documentation

Inferred role

Support Tooling And Documentation: operation-table or driver-model contract

Status

pattern implementation candidate

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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct attribute
• struct device_attribute
• struct sysfs_ops
• struct device_attribute
• struct bus_attribute
• struct driver_attribute
• function dev_attr_show
• function scnprintf
• function store_name

Annotated Snippet

ssize_t (*show)(const struct bus_type *, char * buf);
        ssize_t (*store)(const struct bus_type *, const char * buf, size_t count);
};

聲明:

BUS_ATTR(_name, _mode, _show, _store)

增/刪屬性:

int bus_create_file(struct bus_type *, struct bus_attribute *);
void bus_remove_file(struct bus_type *, struct bus_attribute *);


- 設備驅動程序 (include/linux/device.h)
-----------------------------------------

結構體:

struct driver_attribute {
        struct attribute        attr;
        ssize_t (*show)(struct device_driver *, char * buf);
        ssize_t (*store)(struct device_driver *, const char * buf,
                         size_t count);
};

聲明:

DRIVER_ATTR(_name, _mode, _show, _store)

增/刪屬性：

int driver_create_file(struct device_driver *, const struct driver_attribute *);
void driver_remove_file(struct device_driver *, const struct driver_attribute *);


文檔
~~~~

sysfs 目錄結構以及其中包含的屬性定義了一個內核與用戶空間之間的 ABI。
對於任何 ABI，其自身的穩定和適當的文檔是非常重要的。所有新的 sysfs
屬性必須在 Documentation/ABI 中有文檔。詳見 Documentation/ABI/README。

Annotation

• Detected declarations: `struct attribute`, `struct device_attribute`, `struct sysfs_ops`, `struct device_attribute`, `struct bus_attribute`, `struct driver_attribute`, `function dev_attr_show`, `function scnprintf`, `function store_name`.
• Atlas domain: Support Tooling And Documentation / Documentation.
• Implementation status: pattern implementation candidate.

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.