rust/helpers/pwm.c

File Facts

System

Linux kernel

Corpus path

rust/helpers/pwm.c

Extension

.c

Size

528 bytes

Lines

21

Domain

Rust Kernel Layer

Bucket

Rust API Membrane

Inferred role

Rust Kernel Layer: implementation source

Status

source implementation candidate

Why This File Exists

Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.

• Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/pwm.h

Detected Declarations

• function rust_helper_pwmchip_set_drvdata

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2025 Samsung Electronics Co., Ltd.
// Author: Michal Wilczynski <m.wilczynski@samsung.com>

#include <linux/pwm.h>

__rust_helper struct device *rust_helper_pwmchip_parent(const struct pwm_chip *chip)
{
	return pwmchip_parent(chip);
}

__rust_helper void *rust_helper_pwmchip_get_drvdata(struct pwm_chip *chip)
{
	return pwmchip_get_drvdata(chip);
}

__rust_helper void rust_helper_pwmchip_set_drvdata(struct pwm_chip *chip, void *data)
{
	pwmchip_set_drvdata(chip, data);
}

Annotation

• Immediate include surface: `linux/pwm.h`.
• Detected declarations: `function rust_helper_pwmchip_set_drvdata`.
• Atlas domain: Rust Kernel Layer / Rust API Membrane.
• 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.