Documentation/translations/zh_CN/filesystems/sysfs.txt

Source file repositories/reference/linux-study-clean/Documentation/translations/zh_CN/filesystems/sysfs.txt

File Facts

System: Linux kernel
Corpus path: Documentation/translations/zh_CN/filesystems/sysfs.txt
Extension: .txt
Size: 12482 bytes
Lines: 374
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);
};

声明:

BUS_ATTR(_name, _mode, _show, _store)

增/删属性:

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


- 设备驱动程序 (include/linux/device.h)
-----------------------------------------

结构体:

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);
};

声明:

DRIVER_ATTR(_name, _mode, _show, _store)

增/删属性：

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


文档
~~~~

sysfs 目录结构以及其中包含的属性定义了一个内核与用户空间之间的 ABI。
对于任何 ABI，其自身的稳定和适当的文档是非常重要的。所有新的 sysfs
属性必须在 Documentation/ABI 中有文档。详见 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.