drivers/platform/x86/samsung-laptop.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/samsung-laptop.c

Extension

.c

Size

43594 bytes

Lines

1768

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/kernel.h
• linux/init.h
• linux/module.h
• linux/delay.h
• linux/pci.h
• linux/backlight.h
• linux/leds.h
• linux/dmi.h
• linux/platform_device.h
• linux/power_supply.h
• linux/rfkill.h
• linux/acpi.h
• linux/seq_file.h
• linux/debugfs.h
• linux/ctype.h
• linux/efi.h
• linux/suspend.h
• acpi/battery.h
• acpi/video.h

Detected Declarations

• struct sabi_data
• struct sabi_header_offsets
• struct sabi_commands
• struct sabi_performance_level
• struct sabi_config
• struct samsung_laptop_debug
• struct samsung_laptop
• struct samsung_rfkill
• struct samsung_laptop
• struct samsung_quirks
• function sabi_command
• function sabi_set_commandb
• function read_brightness
• function set_brightness
• function get_brightness
• function check_for_stepping_quirk
• function update_status
• function seclinux_rfkill_set
• function swsmi_wireless_status
• function swsmi_rfkill_set
• function swsmi_rfkill_query
• function get_performance_level
• function set_performance_level
• function show_battery_life_extender_deprecation_warning
• function read_battery_life_extender
• function write_battery_life_extender
• function get_battery_life_extender
• function set_battery_life_extender
• function samsung_psy_ext_set_prop
• function samsung_psy_ext_get_prop
• function samsung_psy_prop_is_writeable
• function samsung_battery_add
• function samsung_battery_remove
• function read_usb_charge
• function write_usb_charge
• function get_usb_charge
• function set_usb_charge
• function read_lid_handling
• function write_lid_handling
• function get_lid_handling
• function set_lid_handling
• function find_signature
• function samsung_rfkill_exit
• function samsung_new_rfkill
• function samsung_rfkill_init_seclinux
• function samsung_rfkill_init_swsmi
• function samsung_rfkill_init
• function samsung_lid_handling_exit

Annotated Snippet

module_init(samsung_init);
module_exit(samsung_exit);

MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@suse.de>");
MODULE_DESCRIPTION("Samsung Laptop driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/init.h`, `linux/module.h`, `linux/delay.h`, `linux/pci.h`, `linux/backlight.h`, `linux/leds.h`, `linux/dmi.h`.
• Detected declarations: `struct sabi_data`, `struct sabi_header_offsets`, `struct sabi_commands`, `struct sabi_performance_level`, `struct sabi_config`, `struct samsung_laptop_debug`, `struct samsung_laptop`, `struct samsung_rfkill`, `struct samsung_laptop`, `struct samsung_quirks`.
• 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.