drivers/iio/dac/ad5592r-base.h

File Facts

System

Linux kernel

Corpus path

drivers/iio/dac/ad5592r-base.h

Extension

.h

Size

2080 bytes

Lines

79

Domain

Driver Families

Bucket

drivers/iio

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

• linux/types.h
• linux/cache.h
• linux/mutex.h
• linux/gpio/driver.h
• linux/iio/iio.h

Detected Declarations

• struct device
• struct ad5592r_state
• struct ad5592r_rw_ops
• struct ad5592r_state
• enum ad5592r_registers

Annotated Snippet

struct ad5592r_rw_ops {
	int (*write_dac)(struct ad5592r_state *st, unsigned chan, u16 value);
	int (*read_adc)(struct ad5592r_state *st, unsigned chan, u16 *value);
	int (*reg_write)(struct ad5592r_state *st, u8 reg, u16 value);
	int (*reg_read)(struct ad5592r_state *st, u8 reg, u16 *value);
	int (*gpio_read)(struct ad5592r_state *st, u8 *value);
};

struct ad5592r_state {
	struct device *dev;
	struct regulator *reg;
	struct gpio_chip gpiochip;
	struct mutex gpio_lock;	/* Protect cached gpio_out, gpio_val, etc. */
	struct mutex lock;
	unsigned int num_channels;
	const struct ad5592r_rw_ops *ops;
	int scale_avail[2][2];
	u16 cached_dac[8];
	u16 cached_gp_ctrl;
	u8 channel_modes[8];
	u8 channel_offstate[8];
	u8 gpio_map;
	u8 gpio_out;
	u8 gpio_in;
	u8 gpio_val;

	__be16 spi_msg __aligned(IIO_DMA_MINALIGN);
	__be16 spi_msg_nop;
};

int ad5592r_probe(struct device *dev, const char *name,
		const struct ad5592r_rw_ops *ops);
void ad5592r_remove(struct device *dev);

#endif /* __DRIVERS_IIO_DAC_AD5592R_BASE_H__ */

Annotation

• Immediate include surface: `linux/types.h`, `linux/cache.h`, `linux/mutex.h`, `linux/gpio/driver.h`, `linux/iio/iio.h`.
• Detected declarations: `struct device`, `struct ad5592r_state`, `struct ad5592r_rw_ops`, `struct ad5592r_state`, `enum ad5592r_registers`.
• Atlas domain: Driver Families / drivers/iio.
• 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.