drivers/platform/x86/dell/dell-wmi-sysman/sysman.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/dell/dell-wmi-sysman/sysman.c

Extension

.c

Size

15112 bytes

Lines

597

Domain

Driver Families

Bucket

drivers/platform

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/align.h
• linux/fs.h
• linux/dmi.h
• linux/module.h
• linux/kernel.h
• linux/string.h
• linux/sysfs.h
• linux/wmi.h
• dell-wmi-sysman.h
• ../../firmware_attributes_class.h
• linux/nls.h

Detected Declarations

• function populate_string_buffer
• function calculate_string_buffer
• function calculate_security_buffer
• function populate_security_buffer
• function map_wmi_error
• function reset_bios_show
• function reset_bios_store
• function pending_reboot_show
• function create_attributes_level_sysfs_files
• function attr_name_release
• function strlcpy_attr
• function get_wmiobj_pointer
• function get_instance_count
• function alloc_attributes_data
• function destroy_attribute_objs
• function list_for_each_entry_safe
• function release_attributes_data
• function init_bios_attributes
• function sysman_init
• function sysman_exit
• module init sysman_init

Annotated Snippet

module_init(sysman_init);
module_exit(sysman_exit);

MODULE_AUTHOR("Mario Limonciello <mario.limonciello@outlook.com>");
MODULE_AUTHOR("Prasanth Ksr <prasanth.ksr@dell.com>");
MODULE_AUTHOR("Divya Bharathi <divya.bharathi@dell.com>");
MODULE_DESCRIPTION("Dell platform setting control interface");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/align.h`, `linux/fs.h`, `linux/dmi.h`, `linux/module.h`, `linux/kernel.h`, `linux/string.h`, `linux/sysfs.h`, `linux/wmi.h`.
• Detected declarations: `function populate_string_buffer`, `function calculate_string_buffer`, `function calculate_security_buffer`, `function populate_security_buffer`, `function map_wmi_error`, `function reset_bios_show`, `function reset_bios_store`, `function pending_reboot_show`, `function create_attributes_level_sysfs_files`, `function attr_name_release`.
• Atlas domain: Driver Families / drivers/platform.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.