include/linux/mfd/stmpe.h

File Facts

System

Linux kernel

Corpus path

include/linux/mfd/stmpe.h

Extension

.h

Size

4083 bytes

Lines

164

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/mutex.h

Detected Declarations

• struct device
• struct regulator
• struct stmpe_variant_info
• struct stmpe_client_info
• struct stmpe_platform_data
• struct stmpe
• enum stmpe_block
• enum stmpe_partnum

Annotated Snippet

struct stmpe {
	struct regulator *vcc;
	struct regulator *vio;
	struct mutex lock;
	struct mutex irq_lock;
	struct device *dev;
	struct irq_domain *domain;
	void *client;
	struct stmpe_client_info *ci;
	enum stmpe_partnum partnum;
	struct stmpe_variant_info *variant;
	const u8 *regs;

	int irq;
	int num_gpios;
	u8 ier[2];
	u8 oldier[2];
	struct stmpe_platform_data *pdata;

	/* For devices that use an ADC */
	u8 sample_time;
	u8 mod_12b;
	u8 ref_sel;
	u8 adc_freq;
};

extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data);
extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg);
extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length,
			    u8 *values);
extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length,
			     const u8 *values);
extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val);
extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins,
			     enum stmpe_block block);
extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks);
extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks);
extern int stmpe811_adc_common_init(struct stmpe *stmpe);

#define STMPE_GPIO_NOREQ_811_TOUCH	(0xf0)

#endif

Annotation

• Immediate include surface: `linux/mutex.h`.
• Detected declarations: `struct device`, `struct regulator`, `struct stmpe_variant_info`, `struct stmpe_client_info`, `struct stmpe_platform_data`, `struct stmpe`, `enum stmpe_block`, `enum stmpe_partnum`.
• 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.