drivers/usb/chipidea/trace.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/chipidea/trace.c

Extension

.c

Size

397 bytes

Lines

24

Domain

Driver Families

Bucket

drivers/usb

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

• trace.h

Detected Declarations

• function Copyright

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Chipidea Device Mode Trace Support
 *
 * Copyright (C) 2020 NXP
 *
 * Author: Peter Chen <peter.chen@nxp.com>
 */

#define CREATE_TRACE_POINTS
#include "trace.h"

void ci_log(struct ci_hdrc *ci, const char *fmt, ...)
{
	struct va_format vaf;
	va_list args;

	va_start(args, fmt);
	vaf.fmt = fmt;
	vaf.va = &args;
	trace_ci_log(ci, &vaf);
	va_end(args);
}

Annotation

• Immediate include surface: `trace.h`.
• Detected declarations: `function Copyright`.
• Atlas domain: Driver Families / drivers/usb.
• 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.