drivers/acpi/acpi_configfs.c

File Facts

System

Linux kernel

Corpus path

drivers/acpi/acpi_configfs.c

Extension

.c

Size

6663 bytes

Lines

287

Domain

Driver Families

Bucket

drivers/acpi

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/module.h
• linux/configfs.h
• linux/acpi.h
• linux/security.h

Detected Declarations

• struct acpi_table
• function acpi_table_aml_write
• function acpi_table_aml_read
• function acpi_table_signature_show
• function acpi_table_length_show
• function acpi_table_revision_show
• function acpi_table_oem_id_show
• function acpi_table_oem_table_id_show
• function acpi_table_oem_revision_show
• function acpi_table_asl_compiler_id_show
• function acpi_table_asl_compiler_revision_show
• function acpi_table_drop_item
• function acpi_configfs_init
• function acpi_configfs_exit
• module init acpi_configfs_init

Annotated Snippet

module_init(acpi_configfs_init);

static void __exit acpi_configfs_exit(void)
{
	configfs_unregister_default_group(acpi_table_group);
	configfs_unregister_subsystem(&acpi_configfs);
}
module_exit(acpi_configfs_exit);

MODULE_AUTHOR("Octavian Purdila <octavian.purdila@intel.com>");
MODULE_DESCRIPTION("ACPI configfs support");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/init.h`, `linux/module.h`, `linux/configfs.h`, `linux/acpi.h`, `linux/security.h`.
• Detected declarations: `struct acpi_table`, `function acpi_table_aml_write`, `function acpi_table_aml_read`, `function acpi_table_signature_show`, `function acpi_table_length_show`, `function acpi_table_revision_show`, `function acpi_table_oem_id_show`, `function acpi_table_oem_table_id_show`, `function acpi_table_oem_revision_show`, `function acpi_table_asl_compiler_id_show`.
• Atlas domain: Driver Families / drivers/acpi.
• Implementation status: integration 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.