drivers/net/wireless/ath/ath9k/dfs_debug.c

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/ath/ath9k/dfs_debug.c

Extension

.c

Size

4956 bytes

Lines

146

Domain

Driver Families

Bucket

drivers/net

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.
• 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/debugfs.h
• linux/export.h
• ath9k.h
• dfs_debug.h
• ../dfs_pattern_detector.h

Detected Declarations

• function read_file_dfs
• function write_file_dfs
• function write_file_simulate_radar
• function ath9k_dfs_init_debug

Annotated Snippet

static const struct file_operations fops_simulate_radar = {
	.write = write_file_simulate_radar,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

static const struct file_operations fops_dfs_stats = {
	.read = read_file_dfs,
	.write = write_file_dfs,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

void ath9k_dfs_init_debug(struct ath_softc *sc)
{
	debugfs_create_file("dfs_stats", 0400,
			    sc->debug.debugfs_phy, sc, &fops_dfs_stats);
	debugfs_create_file("dfs_simulate_radar", 0200,
			    sc->debug.debugfs_phy, sc, &fops_simulate_radar);
}

Annotation

• Immediate include surface: `linux/debugfs.h`, `linux/export.h`, `ath9k.h`, `dfs_debug.h`, `../dfs_pattern_detector.h`.
• Detected declarations: `function read_file_dfs`, `function write_file_dfs`, `function write_file_simulate_radar`, `function ath9k_dfs_init_debug`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: pattern 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.