drivers/hwmon/asus-ec-sensors.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/asus-ec-sensors.c

Extension

.c

Size

50821 bytes

Lines

1553

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.
• 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/acpi.h
• linux/bitops.h
• linux/dev_printk.h
• linux/dmi.h
• linux/hwmon.h
• linux/init.h
• linux/jiffies.h
• linux/kernel.h
• linux/module.h
• linux/platform_device.h
• linux/sort.h
• linux/units.h
• linux/unaligned.h

Detected Declarations

• struct ec_sensor_info
• struct ec_board_info
• struct ec_sensor
• struct lock_data
• struct ec_sensors_data
• enum ec_sensors
• enum board_family
• function lock_via_acpi_mutex
• function unlock_acpi_mutex
• function lock_via_global_acpi_lock
• function unlock_global_acpi_lock
• function register_bank
• function register_index
• function is_sensor_data_signed
• function get_sensor_info
• function find_ec_sensor_index
• function bank_compare
• function setup_sensor_data
• function for_each_set_bit
• function fill_ec_registers
• function setup_lock_data
• function asus_ec_bank_switch
• function asus_ec_block_read
• function get_sensor_value
• function update_sensor_values
• function update_ec_sensors
• function scale_sensor_value
• function get_cached_value_or_update
• function asus_ec_hwmon_read
• function asus_ec_hwmon_read_string
• function asus_ec_hwmon_is_visible
• function asus_ec_hwmon_add_chan_info
• function asus_ec_probe
• function asus_ec_init
• function asus_ec_exit
• module init asus_ec_init

Annotated Snippet

module_init(asus_ec_init);
module_exit(asus_ec_exit);

module_param_named(mutex_path, mutex_path_override, charp, 0);
MODULE_PARM_DESC(mutex_path,
		 "Override ACPI mutex path used to guard access to hardware");

MODULE_AUTHOR("Eugene Shalygin <eugene.shalygin@gmail.com>");
MODULE_DESCRIPTION(
	"HWMON driver for sensors accessible via ACPI EC in ASUS motherboards");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/bitops.h`, `linux/dev_printk.h`, `linux/dmi.h`, `linux/hwmon.h`, `linux/init.h`, `linux/jiffies.h`, `linux/kernel.h`.
• Detected declarations: `struct ec_sensor_info`, `struct ec_board_info`, `struct ec_sensor`, `struct lock_data`, `struct ec_sensors_data`, `enum ec_sensors`, `enum board_family`, `function lock_via_acpi_mutex`, `function unlock_acpi_mutex`, `function lock_via_global_acpi_lock`.
• Atlas domain: Driver Families / drivers/hwmon.
• 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.