libeasymcp2221/mcp2221__gpio_8h_source.html

#ifndef MCP2221_GPIO_H

#define MCP2221_GPIO_H


#include <stdint.h>


#include "mcp2221.h"


MCP2221_BEGIN_DECLS


#define MCP2221_GPIO_KEEP (-1)


typedef struct {

    int gp0;

    int gp1;

    int gp2;

    int gp3;

} mcp2221_gpio_write_t;


MCP2221_API mcp2221_error_code_t mcp2221_gpio_write(mcp2221_t *dev, const mcp2221_gpio_write_t *wr);


MCP2221_API mcp2221_error_code_t mcp2221_gpio_read(mcp2221_t *dev, int out_state[4]);


MCP2221_API mcp2221_error_code_t mcp2221_gpio_read_mask(mcp2221_t *dev, int out_state[4], uint8_t *out_valid_mask);


MCP2221_END_DECLS

#endif  // MCP2221_GPIO_H

mcp2221.h
Core MCP2221 device and I2C master API.

mcp2221_t
struct mcp2221_device mcp2221_t
Opaque MCP2221 device handle.
Definition: mcp2221.h:28

mcp2221_error_code_t
mcp2221_error_code_t
Error codes used by libeasymcp2221.
Definition: mcp2221_error_codes.h:18

MCP2221_API
#define MCP2221_API
Export or import a public libeasymcp2221 API symbol.
Definition: mcp2221_export.h:35

MCP2221_END_DECLS
#define MCP2221_END_DECLS
End a block started by MCP2221_BEGIN_DECLS.
Definition: mcp2221_export.h:56

MCP2221_BEGIN_DECLS
#define MCP2221_BEGIN_DECLS
Begin a block of declarations using C linkage.
Definition: mcp2221_export.h:55

mcp2221_gpio_read_mask
mcp2221_error_code_t mcp2221_gpio_read_mask(mcp2221_t *dev, int out_state[4], uint8_t *out_valid_mask)
Read GPIO state and report which GP pins are configured as GPIO.

mcp2221_gpio_write
mcp2221_error_code_t mcp2221_gpio_write(mcp2221_t *dev, const mcp2221_gpio_write_t *wr)
Update GPIO output values.

mcp2221_gpio_read
mcp2221_error_code_t mcp2221_gpio_read(mcp2221_t *dev, int out_state[4])
Read the current state of GP0 through GP3.

mcp2221_gpio_write_t
Per-pin GPIO output update request.
Definition: mcp2221_gpio.h:33

mcp2221_gpio_write_t::gp1
int gp1
Definition: mcp2221_gpio.h:35

mcp2221_gpio_write_t::gp2
int gp2
Definition: mcp2221_gpio.h:36

mcp2221_gpio_write_t::gp0
int gp0
Definition: mcp2221_gpio.h:34

mcp2221_gpio_write_t::gp3
int gp3
Definition: mcp2221_gpio.h:37