drivers/gpio/gpiolib-swnode.h

File Facts

System

Linux kernel

Corpus path

drivers/gpio/gpiolib-swnode.h

Extension

.h

Size

382 bytes

Lines

15

Domain

Driver Families

Bucket

drivers/gpio

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

• No C-style include directives detected by the generator.

Detected Declarations

• struct fwnode_handle
• struct gpio_desc

Annotated Snippet

#ifndef GPIOLIB_SWNODE_H
#define GPIOLIB_SWNODE_H

struct fwnode_handle;
struct gpio_desc;

struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode,
				   const char *con_id, unsigned int idx,
				   unsigned long *flags);
int swnode_gpio_count(const struct fwnode_handle *fwnode, const char *con_id);

#endif /* GPIOLIB_SWNODE_H */

Annotation

• Detected declarations: `struct fwnode_handle`, `struct gpio_desc`.
• Atlas domain: Driver Families / drivers/gpio.
• 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.