drivers/hwmon/applesmc.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/applesmc.c

Extension

.c

Size

33745 bytes

Lines

1420

Domain

Driver Families

Bucket

drivers/hwmon

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/delay.h
• linux/platform_device.h
• linux/input.h
• linux/kernel.h
• linux/slab.h
• linux/module.h
• linux/timer.h
• linux/dmi.h
• linux/mutex.h
• linux/hwmon-sysfs.h
• linux/io.h
• linux/leds.h
• linux/hwmon.h
• linux/workqueue.h
• linux/err.h
• linux/bits.h

Detected Declarations

• struct applesmc_dev_attr
• struct applesmc_node_group
• struct applesmc_entry
• function wait_status
• function send_byte
• function send_command
• function smc_sane
• function send_argument
• function read_smc
• function write_smc
• function read_register_count
• function applesmc_read_entry
• function applesmc_write_entry
• function applesmc_get_lower_bound
• function applesmc_get_upper_bound
• function applesmc_read_key
• function applesmc_write_key
• function applesmc_has_key
• function applesmc_read_s16
• function applesmc_device_init
• function applesmc_init_index
• function applesmc_init_smcreg_try
• function applesmc_destroy_smcreg
• function applesmc_init_smcreg
• function applesmc_probe
• function applesmc_pm_resume
• function applesmc_pm_restore
• function applesmc_calibrate
• function applesmc_idev_poll
• function applesmc_name_show
• function applesmc_position_show
• function applesmc_light_show
• function applesmc_show_sensor_label
• function applesmc_show_temperature
• function applesmc_show_fan_speed
• function applesmc_store_fan_speed
• function applesmc_show_fan_manual
• function applesmc_store_fan_manual
• function applesmc_show_fan_position
• function applesmc_calibrate_show
• function applesmc_calibrate_store
• function applesmc_backlight_set
• function applesmc_brightness_set
• function applesmc_key_count_show
• function applesmc_key_at_index_read_show
• function applesmc_key_at_index_data_length_show
• function applesmc_key_at_index_type_show
• function applesmc_key_at_index_name_show

Annotated Snippet

module_init(applesmc_init);
module_exit(applesmc_exit);

MODULE_AUTHOR("Nicolas Boichat");
MODULE_DESCRIPTION("Apple SMC");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/delay.h`, `linux/platform_device.h`, `linux/input.h`, `linux/kernel.h`, `linux/slab.h`, `linux/module.h`, `linux/timer.h`, `linux/dmi.h`.
• Detected declarations: `struct applesmc_dev_attr`, `struct applesmc_node_group`, `struct applesmc_entry`, `function wait_status`, `function send_byte`, `function send_command`, `function smc_sane`, `function send_argument`, `function read_smc`, `function write_smc`.
• Atlas domain: Driver Families / drivers/hwmon.
• 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.