I2C bus master driver. More...

Data Structures
struct	ove_i2c_cfg
	I2C bus configuration descriptor. More...

Enumerations
enum	ove_i2c_speed_t { OVE_I2C_SPEED_STANDARD = 0 , OVE_I2C_SPEED_FAST = 1 , OVE_I2C_SPEED_FAST_PLUS = 2 }
	I2C bus speed grade. More...

Functions
static int	ove_i2c_create (ove_i2c_t i, const struct ove_i2c_cfg c)

static void	ove_i2c_destroy (ove_i2c_t i)

static int	ove_i2c_write (ove_i2c_t i, uint16_t a, const void *d, size_t l, uint32_t t)

static int	ove_i2c_read (ove_i2c_t i, uint16_t a, void *b, size_t l, uint32_t t)

static int	ove_i2c_write_read (ove_i2c_t i, uint16_t a, const void tx, size_t tl, void rx, size_t rl, uint32_t t)

static int	ove_i2c_reg_write (ove_i2c_t i, uint16_t a, uint8_t r, const void *d, size_t l, uint32_t t)

static int	ove_i2c_reg_read (ove_i2c_t i, uint16_t a, uint8_t r, void *b, size_t l, uint32_t t)

static int	ove_i2c_probe (ove_i2c_t i, uint16_t a, uint32_t t)

Detailed Description

I2C bus master driver.

Provides a portable I2C master API with configurable bus speed, thread-safe bus locking, register-level convenience functions, and device probing.

Two allocation strategies are supported:

_create() / _destroy() — unified API that works in both heap and zero-heap mode. In zero-heap mode these are macros that generate per-call-site static storage.
_init() / _deinit() — explicit storage control with caller-supplied buffers. Use when creating objects in loops, arrays, or structs.

All addresses are 7-bit (e.g. 0x50 for a typical EEPROM). The HAL shifts left and adds the R/W bit internally.

Note: Requires CONFIG_OVE_I2C. When the option is disabled every function is replaced by a no-op stub that returns OVE_ERR_NOT_SUPPORTED.

Enumeration Type Documentation

I2C bus speed grade.