MFD PCA9422 Interface

Typedefs
typedef void(*	child_isr_t) (const struct device *dev)

Enumerations
enum	child_dev { PCA9422_DEV_REG = 0 , PCA9422_DEV_CHG , PCA9422_DEV_FG , PCA9422_DEV_MAX }
	Child device of pca9422. More...

Functions
void	mfd_pca9422_set_irqhandler (const struct device *dev, const struct device *child_dev, enum child_dev child_idx, child_isr_t handler)
	Set child interrupt handler of pca9422.
int	mfd_pca9422_reg_burst_read (const struct device *dev, uint8_t reg, uint8_t *value, size_t len)
	Read multiple registers from pca9422.
int	mfd_pca9422_reg_read_byte (const struct device *dev, uint8_t reg, uint8_t *value)
	Read single register from pca9422.
int	mfd_pca9422_reg_burst_write (const struct device *dev, uint8_t reg, uint8_t *value, size_t len)
	Write multiple registers to pca9422.
int	mfd_pca9422_reg_write_byte (const struct device *dev, uint8_t reg, uint8_t value)
	Write single register to pca9422.
int	mfd_pca9422_reg_update_byte (const struct device *dev, uint8_t reg, uint8_t mask, uint8_t value)
	Update selected bits in pca9422 register.

Detailed Description

Typedef Documentation

child_isr_t

typedef void(* child_isr_t) (const struct device *dev)

#include <zephyr/drivers/mfd/pca9422.h>

Enumeration Type Documentation

child_dev

enum child_dev

#include <zephyr/drivers/mfd/pca9422.h>

Child device of pca9422.

Enumerator
PCA9422_DEV_REG
PCA9422_DEV_CHG	Regulator.
PCA9422_DEV_FG	Charger.
PCA9422_DEV_MAX	Fuelgauge.

Function Documentation

mfd_pca9422_reg_burst_read()

int mfd_pca9422_reg_burst_read	(	const struct device *	dev,
		uint8_t	reg,
		uint8_t *	value,
		size_t	len )

#include <zephyr/drivers/mfd/pca9422.h>

Read multiple registers from pca9422.

Parameters

dev	pca9422 mfd device
reg	Register start address
value	Pointer that stores the received data
len	Number of bytes to read

Return values

0	If successful
-errno	In case of any bus error (see i2c_burst_read_dt())

mfd_pca9422_reg_burst_write()

int mfd_pca9422_reg_burst_write	(	const struct device *	dev,
		uint8_t	reg,
		uint8_t *	value,
		size_t	len )

#include <zephyr/drivers/mfd/pca9422.h>

Write multiple registers to pca9422.

Parameters

dev	pca9422 mfd device
reg	Register start address
value	Pointer that stores the write data
len	Number of bytes to write

Return values

0	If successful
-errno	In case of any bus error (see i2c_burst_write_dt())

mfd_pca9422_reg_read_byte()

int mfd_pca9422_reg_read_byte	(	const struct device *	dev,
		uint8_t	reg,
		uint8_t *	value )

#include <zephyr/drivers/mfd/pca9422.h>

Read single register from pca9422.

Parameters

dev	pca9422 mfd device
reg	Register address
value	Pointer that stores the received data

Return values

0	If successful
-errno	In case of any bus error (see i2c_reg_read_byte_dt())

mfd_pca9422_reg_update_byte()

int mfd_pca9422_reg_update_byte	(	const struct device *	dev,
		uint8_t	reg,
		uint8_t	mask,
		uint8_t	value )

#include <zephyr/drivers/mfd/pca9422.h>

Update selected bits in pca9422 register.

Parameters

dev	pca9422 mfd device
reg	Register address
mask	mask of bits to be modified
value	data to write

Return values

0	If successful
-errno	In case of any bus error (see i2c_reg_update_byte_dt())

mfd_pca9422_reg_write_byte()

int mfd_pca9422_reg_write_byte	(	const struct device *	dev,
		uint8_t	reg,
		uint8_t	value )

#include <zephyr/drivers/mfd/pca9422.h>

Write single register to pca9422.

Parameters

dev	pca9422 mfd device
reg	Register address
value	data to write

Return values

0	If successful
-errno	In case of any bus error (see i2c_reg_write_byte_dt())

mfd_pca9422_set_irqhandler()

void mfd_pca9422_set_irqhandler	(	const struct device *	dev,
		const struct device *	child_dev,
		enum child_dev	child_idx,
		child_isr_t	handler )

#include <zephyr/drivers/mfd/pca9422.h>

Set child interrupt handler of pca9422.

Parameters

dev	pca9422 mfd device
child_dev	pca9422 child device
child_idx	index in enum type of child device
handler	interrupt handler of child device