drivers/hwmon/smsc47m1.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/smsc47m1.c

Extension

.c

Size

24657 bytes

Lines

937

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

Detected Declarations

• struct smsc47m1_data
• struct smsc47m1_sio_data
• enum chips
• function superio_outb
• function superio_inb
• function superio_enter
• function superio_exit
• function smsc47m1_read_value
• function smsc47m1_write_value
• function fan_show
• function fan_min_show
• function fan_div_show
• function fan_alarm_show
• function pwm_show
• function pwm_en_show
• function alarms_show
• function fan_min_store
• function fan_div_store
• function pwm_store
• function pwm_en_store
• function name_show
• function smsc47m1_find
• function besides
• function smsc47m1_restore
• function smsc47m1_handle_resources
• function smsc47m1_remove_files
• function smsc47m1_probe
• function smsc47m1_remove
• function smsc47m1_device_add
• function sm_smsc47m1_init
• function sm_smsc47m1_exit
• module init sm_smsc47m1_init

Annotated Snippet

module_init(sm_smsc47m1_init);
module_exit(sm_smsc47m1_exit);

Annotation

• Immediate include surface: `linux/module.h`, `linux/slab.h`, `linux/ioport.h`, `linux/jiffies.h`, `linux/platform_device.h`, `linux/hwmon.h`, `linux/hwmon-sysfs.h`, `linux/err.h`.
• Detected declarations: `struct smsc47m1_data`, `struct smsc47m1_sio_data`, `enum chips`, `function superio_outb`, `function superio_inb`, `function superio_enter`, `function superio_exit`, `function smsc47m1_read_value`, `function smsc47m1_write_value`, `function fan_show`.
• 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.