drivers/hwmon/dell-smm-hwmon.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/dell-smm-hwmon.c

Extension

.c

Size

42174 bytes

Lines

1854

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.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• 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/acpi.h
• linux/capability.h
• linux/cpu.h
• linux/ctype.h
• linux/delay.h
• linux/dmi.h
• linux/err.h
• linux/errno.h
• linux/hwmon.h
• linux/init.h
• linux/kconfig.h
• linux/kernel.h
• linux/minmax.h
• linux/module.h
• linux/mutex.h
• linux/platform_device.h
• linux/proc_fs.h
• linux/seq_file.h
• linux/slab.h
• linux/smp.h
• linux/string.h
• linux/thermal.h
• linux/types.h
• linux/uaccess.h
• linux/wmi.h
• linux/i8k.h
• linux/unaligned.h

Detected Declarations

• struct smm_regs
• struct dell_smm_ops
• struct dell_smm_data
• struct dell_smm_cooling_data
• struct i8k_config_data
• struct i8k_fan_control_data
• enum i8k_configs
• enum i8k_fan_controls
• function i8k_smm_func
• function i8k_smm_call
• function wmi_parse_register
• function wmi_parse_response
• function wmi_smm_call
• function dell_smm_call
• function i8k_get_fan_status
• function i8k_get_fan_speed
• function _i8k_get_fan_type
• function i8k_get_fan_type
• function i8k_get_fan_nominal_speed
• function i8k_enable_fan_auto_mode
• function speed
• function i8k_get_temp_type
• function _i8k_get_temp
• function i8k_get_temp
• function retry
• function dell_smm_get_signature
• function i8k_get_fn_status
• function i8k_get_power_status
• function i8k_ioctl
• function i8k_proc_show
• function i8k_open_fs
• function i8k_exit_procfs
• function i8k_init_procfs
• function i8k_init_procfs
• function dell_smm_get_cur_state
• function dell_smm_set_cur_state
• function dell_smm_is_visible
• function dell_smm_read
• function dell_smm_read_string
• function dell_smm_write
• function dell_smm_init_cdev
• function dell_smm_init_hwmon
• function dell_smm_init_data
• function dell_smm_probe
• function dell_smm_wmi_probe
• function dell_smm_init_dmi
• function dell_smm_legacy_check
• function i8k_init

Annotated Snippet

module_init(i8k_init);
module_exit(i8k_exit);

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/capability.h`, `linux/cpu.h`, `linux/ctype.h`, `linux/delay.h`, `linux/dmi.h`, `linux/err.h`, `linux/errno.h`.
• Detected declarations: `struct smm_regs`, `struct dell_smm_ops`, `struct dell_smm_data`, `struct dell_smm_cooling_data`, `struct i8k_config_data`, `struct i8k_fan_control_data`, `enum i8k_configs`, `enum i8k_fan_controls`, `function i8k_smm_func`, `function i8k_smm_call`.
• Atlas domain: Driver Families / drivers/hwmon.
• Implementation status: integration implementation candidate.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.
• 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.