include/linux/pinctrl/pinmux.h

File Facts

System

Linux kernel

Corpus path

include/linux/pinctrl/pinmux.h

Extension

.h

Size

4884 bytes

Lines

102

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct pinctrl_dev
• struct pinctrl_gpio_range
• struct pinmux_ops

Annotated Snippet

struct pinmux_ops {
	int (*request) (struct pinctrl_dev *pctldev, unsigned int offset);
	int (*free) (struct pinctrl_dev *pctldev, unsigned int offset);
	int (*get_functions_count) (struct pinctrl_dev *pctldev);
	const char *(*get_function_name) (struct pinctrl_dev *pctldev,
					  unsigned int selector);
	int (*get_function_groups) (struct pinctrl_dev *pctldev,
				    unsigned int selector,
				    const char * const **groups,
				    unsigned int *num_groups);
	bool (*function_is_gpio) (struct pinctrl_dev *pctldev,
				  unsigned int selector);
	int (*set_mux) (struct pinctrl_dev *pctldev, unsigned int func_selector,
			unsigned int group_selector);
	void (*release_mux) (struct pinctrl_dev *pctldev,
			     unsigned int func_selector,
			     unsigned int group_selector);
	int (*gpio_request_enable) (struct pinctrl_dev *pctldev,
				    struct pinctrl_gpio_range *range,
				    unsigned int offset);
	void (*gpio_disable_free) (struct pinctrl_dev *pctldev,
				   struct pinctrl_gpio_range *range,
				   unsigned int offset);
	int (*gpio_set_direction) (struct pinctrl_dev *pctldev,
				   struct pinctrl_gpio_range *range,
				   unsigned int offset,
				   bool input);
	bool strict;
};

#endif /* __LINUX_PINCTRL_PINMUX_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct pinctrl_dev`, `struct pinctrl_gpio_range`, `struct pinmux_ops`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.