I2C Emulation Interface

I2C Emulation Interface. More...

Data Structures
struct	i2c_emul
	Node in a linked list of emulators for I2C devices. More...
struct	i2c_emul_api
	Definition of the emulator API. More...

Typedefs
typedef int(*	i2c_emul_transfer_t) (const struct emul *target, struct i2c_msg *msgs, int num_msgs, int addr)
	Passes I2C messages to the emulator.

Functions
int	i2c_emul_register (const struct device *dev, struct i2c_emul *emul)
	Register an emulated device on the controller.

Detailed Description

I2C Emulation Interface.

Typedef Documentation

i2c_emul_transfer_t

typedef int(* i2c_emul_transfer_t) (const struct emul *target, struct i2c_msg *msgs, int num_msgs, int addr)

#include <include/zephyr/drivers/i2c_emul.h>

Passes I2C messages to the emulator.

The emulator updates the data with what was read back.

Parameters

target	The device Emulator instance.
msgs	Array of messages to transfer. For 'read' messages, this function updates the 'buf' member with the data that was read.
num_msgs	Number of messages to transfer.
addr	Address of the I2C target device.

Return values

0	If successful.
-EIO	General input / output error.

Function Documentation

i2c_emul_register()

int i2c_emul_register	(	const struct device *	dev,
		struct i2c_emul *	emul
	)

#include <include/zephyr/drivers/i2c_emul.h>

Register an emulated device on the controller.

Parameters

dev	Device that will use the emulator
emul	I2C emulator to use

Returns

0 indicating success (always)