drivers/hwmon/w83627ehf.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/w83627ehf.c

Extension

.c

Size

61492 bytes

Lines

2164

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/module.h
• linux/init.h
• linux/slab.h
• linux/jiffies.h
• linux/platform_device.h
• linux/hwmon.h
• linux/hwmon-sysfs.h
• linux/hwmon-vid.h
• linux/err.h
• linux/mutex.h
• linux/acpi.h
• linux/io.h
• lm75.h

Detected Declarations

• struct w83627ehf_data
• struct w83627ehf_sio_data
• enum kinds
• function superio_outb
• function superio_inb
• function superio_select
• function superio_enter
• function superio_exit
• function is_word_sized
• function step_time_from_reg
• function step_time_to_reg
• function fan_from_reg8
• function div_from_reg
• function in_from_reg
• function in_to_reg
• function w83627ehf_set_bank
• function w83627ehf_read_value
• function w83627ehf_write_value
• function w83627ehf_read_temp
• function w83627ehf_write_temp
• function w83627ehf_write_fan_div
• function w83627ehf_update_fan_div
• function w83627ehf_update_pwm
• function store_fan_min
• function divider
• function store_temp_offset
• function store_pwm_mode
• function store_pwm
• function store_pwm_enable
• function store_target_temp
• function store_tolerance
• function cpu0_vid_show
• function clear_caseopen
• function w83627ehf_attrs_visible
• function w83627ehf_init_device
• function w83627ehf_set_temp_reg_ehf
• function w83627ehf_check_fan_inputs
• function w83627ehf_is_visible
• function w83627ehf_do_read_temp
• function w83627ehf_do_read_in
• function w83627ehf_do_read_fan
• function w83627ehf_do_read_pwm
• function w83627ehf_do_read_intrusion
• function w83627ehf_read
• function w83627ehf_read_string
• function w83627ehf_write
• function w83627ehf_probe
• function w83627ehf_suspend

Annotated Snippet

module_init(sensors_w83627ehf_init);
module_exit(sensors_w83627ehf_exit);

Annotation

• Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/slab.h`, `linux/jiffies.h`, `linux/platform_device.h`, `linux/hwmon.h`, `linux/hwmon-sysfs.h`, `linux/hwmon-vid.h`.
• Detected declarations: `struct w83627ehf_data`, `struct w83627ehf_sio_data`, `enum kinds`, `function superio_outb`, `function superio_inb`, `function superio_select`, `function superio_enter`, `function superio_exit`, `function is_word_sized`, `function step_time_from_reg`.
• 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.