drivers/clocksource/timer-probe.c

File Facts

System

Linux kernel

Corpus path

drivers/clocksource/timer-probe.c

Extension

.c

Size

959 bytes

Lines

46

Domain

Driver Families

Bucket

drivers/clocksource

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/acpi.h
• linux/init.h
• linux/of.h
• linux/clocksource.h

Detected Declarations

• function timer_probe
• function for_each_matching_node_and_match

Annotated Snippet

if (ret) {
			if (ret != -EPROBE_DEFER)
				pr_err("Failed to initialize '%pOF': %d\n", np,
				       ret);
			continue;
		}

		timers++;
	}

	timers += acpi_probe_device_table(timer);

	if (!timers)
		pr_crit("%s: no matching timers found\n", __func__);
}

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/init.h`, `linux/of.h`, `linux/clocksource.h`.
• Detected declarations: `function timer_probe`, `function for_each_matching_node_and_match`.
• Atlas domain: Driver Families / drivers/clocksource.
• Implementation status: source 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.