drivers/watchdog/lenovo_se30_wdt.c

File Facts

System

Linux kernel

Corpus path

drivers/watchdog/lenovo_se30_wdt.c

Extension

.c

Size

9955 bytes

Lines

397

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.
• 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/io.h
• linux/dmi.h
• linux/delay.h
• linux/iommu.h
• linux/kernel.h
• linux/module.h
• linux/moduleparam.h
• linux/platform_device.h
• linux/watchdog.h

Detected Declarations

• struct nct6692_reg
• struct lenovo_se30_wdt
• function superio_outb
• function superio_inb
• function superio_enter
• function superio_exit
• function shm_get_ready
• function read_shm_win
• function write_shm_win
• function lenovo_se30_wdt_enable
• function lenovo_se30_wdt_start
• function lenovo_se30_wdt_stop
• function lenovo_se30_wdt_get_timeleft
• function lenovo_se30_wdt_ping
• function lenovo_se30_wdt_probe
• function lenovo_se30_create_platform_device
• function lenovo_se30_wdt_init
• function lenovo_se30_wdt_exit
• module init lenovo_se30_wdt_init

Annotated Snippet

module_init(lenovo_se30_wdt_init);
module_exit(lenovo_se30_wdt_exit);

MODULE_AUTHOR("Mark Pearson <mpearson-lenovo@squebb.ca>");
MODULE_AUTHOR("David Ober <dober@lenovo.com>");
MODULE_DESCRIPTION("Lenovo SE30 watchdog driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/io.h`, `linux/dmi.h`, `linux/delay.h`, `linux/iommu.h`, `linux/kernel.h`, `linux/module.h`, `linux/moduleparam.h`, `linux/platform_device.h`.
• Detected declarations: `struct nct6692_reg`, `struct lenovo_se30_wdt`, `function superio_outb`, `function superio_inb`, `function superio_enter`, `function superio_exit`, `function shm_get_ready`, `function read_shm_win`, `function write_shm_win`, `function lenovo_se30_wdt_enable`.
• 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.