_PCF857XGPIO Struct Reference

#include <pcf857x.h>

Data Fields
GPIO_DEVICE	gpio
I2C_DEVICE *	i2c
	The I2C device this GPIO is connected to.
uint16_t	address
	The I2C address of the device.
uint32_t	chip
	The chip type (eg PCF857X_CHIP_PCF8574).
uint32_t	size
	Size of an I2C read/write for the device.
uint32_t	rate
	Clock rate for this device.
uint8_t	gpiovalues [PCF857X_I2C_MAX_SIZE]
	Buffer for GPIO port values (Output only).
uint8_t	gppuvalues [PCF857X_I2C_MAX_SIZE]
	Buffer for GPPU pull up values.
uint8_t	iodirvalues [PCF857X_I2C_MAX_SIZE]
	Buffer for IODIR I/O direction values.

Field Documentation

gpio

GPIO_DEVICE gpio

i2c

I2C_DEVICE* i2c

The I2C device this GPIO is connected to.

address

uint16_t address

The I2C address of the device.

chip

uint32_t chip

The chip type (eg PCF857X_CHIP_PCF8574).

size

uint32_t size

Size of an I2C read/write for the device.

rate

uint32_t rate

Clock rate for this device.

gpiovalues

uint8_t gpiovalues[PCF857X_I2C_MAX_SIZE]

Buffer for GPIO port values (Output only).

gppuvalues

uint8_t gppuvalues[PCF857X_I2C_MAX_SIZE]

Buffer for GPPU pull up values.

iodirvalues

uint8_t iodirvalues[PCF857X_I2C_MAX_SIZE]

Buffer for IODIR I/O direction values.

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The documentation for this struct was generated from the following file:

• ultibo/drivers/pcf857x.h