drivers/watchdog/w83627hf_wdt.c

Source file repositories/reference/linux-study-clean/drivers/watchdog/w83627hf_wdt.c

File Facts

System: Linux kernel
Corpus path: drivers/watchdog/w83627hf_wdt.c
Extension: .c
Size: 12110 bytes
Lines: 550
Domain: Driver Families
Bucket: drivers/watchdog
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.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/module.h
linux/moduleparam.h
linux/types.h
linux/watchdog.h
linux/ioport.h
linux/init.h
linux/io.h
linux/dmi.h

Detected Declarations

enum chips
function superio_outb
function superio_inb
function superio_enter
function superio_select
function superio_exit
function w83627hf_init
function wdt_set_time
function wdt_start
function wdt_stop
function wdt_set_timeout
function wdt_get_time
function wdt_find
function wdt_use_alt_key
function wdt_init
function wdt_exit
module init wdt_init

Annotated Snippet

module_init(wdt_init);
module_exit(wdt_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pádraig  Brady <P@draigBrady.com>");
MODULE_DESCRIPTION("w83627hf/thf WDT driver");

Annotation

Immediate include surface: `linux/module.h`, `linux/moduleparam.h`, `linux/types.h`, `linux/watchdog.h`, `linux/ioport.h`, `linux/init.h`, `linux/io.h`, `linux/dmi.h`.
Detected declarations: `enum chips`, `function superio_outb`, `function superio_inb`, `function superio_enter`, `function superio_select`, `function superio_exit`, `function w83627hf_init`, `function wdt_set_time`, `function wdt_start`, `function wdt_stop`.
Atlas domain: Driver Families / drivers/watchdog.
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.