drivers/watchdog/f71808e_wdt.c

File Facts

System

Linux kernel

Corpus path

drivers/watchdog/f71808e_wdt.c

Extension

.c

Size

17314 bytes

Lines

669

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/err.h
• linux/init.h
• linux/io.h
• linux/ioport.h
• linux/module.h
• linux/platform_device.h
• linux/watchdog.h

Detected Declarations

• struct fintek_wdt
• struct fintek_wdt_pdata
• enum chips
• function superio_inb
• function superio_inw
• function superio_outb
• function superio_set_bit
• function superio_clear_bit
• function superio_enter
• function superio_select
• function superio_exit
• function fintek_wdt_set_timeout
• function fintek_wdt_set_pulse_width
• function fintek_wdt_keepalive
• function fintek_wdt_start
• function fintek_wdt_stop
• function fintek_wdt_is_running
• function fintek_wdt_probe
• function fintek_wdt_find
• function fintek_wdt_init
• function fintek_wdt_exit
• module init fintek_wdt_init

Annotated Snippet

module_init(fintek_wdt_init);
module_exit(fintek_wdt_exit);

Annotation

• Immediate include surface: `linux/err.h`, `linux/init.h`, `linux/io.h`, `linux/ioport.h`, `linux/module.h`, `linux/platform_device.h`, `linux/watchdog.h`.
• Detected declarations: `struct fintek_wdt`, `struct fintek_wdt_pdata`, `enum chips`, `function superio_inb`, `function superio_inw`, `function superio_outb`, `function superio_set_bit`, `function superio_clear_bit`, `function superio_enter`, `function superio_select`.
• 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.