drivers/platform/x86/compal-laptop.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/compal-laptop.c

Extension

.c

Size

29896 bytes

Lines

1114

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/module.h
• linux/kernel.h
• linux/init.h
• linux/acpi.h
• linux/dmi.h
• linux/backlight.h
• linux/platform_device.h
• linux/rfkill.h
• linux/hwmon.h
• linux/hwmon-sysfs.h
• linux/power_supply.h
• linux/sysfs.h
• acpi/video.h

Detected Declarations

• struct compal_data
• function ec_read_u8
• function ec_read_s8
• function ec_read_u16
• function ec_read_s16
• function ec_read_sequence
• function set_backlight_level
• function get_backlight_level
• function set_backlight_state
• function pwm_enable_control
• function pwm_disable_control
• function set_pwm
• function get_fan_rpm
• function bl_get_brightness
• function bl_update_status
• function compal_rfkill_set
• function compal_rfkill_poll
• function pwm_enable_show
• function pwm_enable_store
• function pwm_show
• function pwm_store
• function fan_show
• function bat_status
• function bat_health
• function bat_is_present
• function bat_technology
• function bat_capacity_level
• function bat_get_property
• function bat_set_property
• function bat_writeable_property
• function dmi_check_cb
• function dmi_check_cb_extra
• function initialize_power_supply_data
• function initialize_fan_control_data
• function setup_rfkill
• function compal_probe
• function compal_remove
• function compal_init
• function compal_cleanup
• module init compal_init

Annotated Snippet

module_init(compal_init);
module_exit(compal_cleanup);

MODULE_AUTHOR("Cezary Jackiewicz");
MODULE_AUTHOR("Roald Frederickx <roald.frederickx@gmail.com>");
MODULE_DESCRIPTION("Compal Laptop Support");
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/init.h`, `linux/acpi.h`, `linux/dmi.h`, `linux/backlight.h`, `linux/platform_device.h`, `linux/rfkill.h`.
• Detected declarations: `struct compal_data`, `function ec_read_u8`, `function ec_read_s8`, `function ec_read_u16`, `function ec_read_s16`, `function ec_read_sequence`, `function set_backlight_level`, `function get_backlight_level`, `function set_backlight_state`, `function pwm_enable_control`.
• Atlas domain: Driver Families / drivers/platform.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.