weslydreamer / tca9555_driver

Pure C code driver for TCA9555 GPIO expander

TCA9555 gpio expander driver

Introduction

This package contains the TCA9555 gpio expander driver

The driver package includes tca9555_driver.h, tca9555_driver.c

Integration details

• Integrate tca9555_driver.h, tca9555_driver.c
• Include the tca9555_driver.h file in your code like below.

#include "tca9555_driver.h"

File information

• tca9555_driver.h : This header file contains the declarations of driver APIs.
• tca9555_driver.c : This source file contains the definitions of driver APIs.

Usage guide

Initializing the gpio expander

To initialize gpio expander, user need to create a device structure. User can do this by creating an instance of the structure tca9555_dev_t. After creating the device strcuture, user need to fill in the various parameters as shown below.

Example of initialization touch controller device structure

static tca9555_dev_t gpio_expander = {
    .i2c_read = user_i2c_read,
    .i2c_write = user_i2c_write,
    .i2c_addr = tca9555_address,
};

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.