drivers/hwmon/k8temp.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/k8temp.c

Extension

.c

Size

5588 bytes

Lines

227

Domain

Driver Families

Bucket

drivers/hwmon

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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/pci.h
• linux/hwmon.h
• linux/err.h
• linux/mutex.h
• asm/processor.h
• asm/cpuid/api.h

Detected Declarations

• struct k8temp_data
• function is_rev_g_desktop
• function k8temp_is_visible
• function k8temp_read
• function k8temp_probe

Annotated Snippet

static struct pci_driver k8temp_driver = {
	.name = "k8temp",
	.id_table = k8temp_ids,
	.probe = k8temp_probe,
};

module_pci_driver(k8temp_driver);

MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>");
MODULE_DESCRIPTION("AMD K8 core temperature monitor");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/slab.h`, `linux/pci.h`, `linux/hwmon.h`, `linux/err.h`, `linux/mutex.h`, `asm/processor.h`.
• Detected declarations: `struct k8temp_data`, `function is_rev_g_desktop`, `function k8temp_is_visible`, `function k8temp_read`, `function k8temp_probe`.
• Atlas domain: Driver Families / drivers/hwmon.
• Implementation status: pattern 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.