I2C Emulation Interface

I2C Emulation Interface. More...

Data Structures
struct	i2c_emul
struct	i2c_emul_api

Typedefs
typedef int(*	i2c_emul_transfer_t) (struct i2c_emul *emul, struct i2c_msg *msgs, int num_msgs, int addr)

Functions
int	i2c_emul_register (const struct device *dev, const char *name, struct i2c_emul *emul)
uint32_t	i2c_emul_get_config (const struct device *dev)

Detailed Description

I2C Emulation Interface.

Typedef Documentation

i2c_emul_transfer_t

typedef int(* i2c_emul_transfer_t) (struct i2c_emul *emul, struct i2c_msg *msgs, int num_msgs, int addr)

#include <include/drivers/i2c_emul.h>

Passes I2C messages to the emulator. The emulator updates the data with what was read back.

Parameters

emul	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_get_config()

uint32_t i2c_emul_get_config

(

const struct device *

dev

)

#include <include/drivers/i2c_emul.h>

Back door to allow an emulator to retrieve the host configuration.

Parameters

dev	I2C device associated with the emulator

Returns

Bit-packed 32-bit value containing the device's runtime configuration

i2c_emul_register()

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

#include <include/drivers/i2c_emul.h>

Register an emulated device on the controller

Parameters

dev	Device that will use the emulator
name	User-friendly name for this emulator
emul	I2C emulator to use

Returns

0 indicating success (always)