drivers/platform/loongarch/loongson-laptop.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/loongarch/loongson-laptop.c

Extension

.c

Size

14814 bytes

Lines

636

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/kernel.h
• linux/module.h
• linux/acpi.h
• linux/backlight.h
• linux/device.h
• linux/input.h
• linux/input/sparse-keymap.h
• linux/platform_device.h
• linux/string.h
• linux/types.h
• acpi/video.h

Detected Declarations

• struct generic_sub_driver
• function acpi_evalf
• function hotkey_status_get
• function dispatch_acpi_notify
• function setup_acpi_notify
• function loongson_hotkey_suspend
• function loongson_hotkey_resume
• function loongson_hotkey_probe
• function hotkey_map
• function hotkey_backlight_set
• function ec_get_brightness
• function ec_set_brightness
• function ec_backlight_level
• function ec_backlight_set_power
• function loongson_laptop_backlight_update
• function loongson_laptop_get_brightness
• function laptop_backlight_register
• function event_init
• function event_notify
• function generic_subdriver_init
• function generic_subdriver_exit
• function generic_acpi_laptop_init
• function generic_acpi_laptop_exit
• module init generic_acpi_laptop_init

Annotated Snippet

module_init(generic_acpi_laptop_init);
module_exit(generic_acpi_laptop_exit);

MODULE_AUTHOR("Jianmin Lv <lvjianmin@loongson.cn>");
MODULE_AUTHOR("Huacai Chen <chenhuacai@loongson.cn>");
MODULE_DESCRIPTION("Loongson Laptop/All-in-One ACPI Driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/init.h`, `linux/kernel.h`, `linux/module.h`, `linux/acpi.h`, `linux/backlight.h`, `linux/device.h`, `linux/input.h`, `linux/input/sparse-keymap.h`.
• Detected declarations: `struct generic_sub_driver`, `function acpi_evalf`, `function hotkey_status_get`, `function dispatch_acpi_notify`, `function setup_acpi_notify`, `function loongson_hotkey_suspend`, `function loongson_hotkey_resume`, `function loongson_hotkey_probe`, `function hotkey_map`, `function hotkey_backlight_set`.
• Atlas domain: Driver Families / drivers/platform.
• 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.