Digital IO module public API. More...

#include "err.h"
#include "stm32f401re_gpio.h"
#include "configuration.h"

Include dependency graph for io.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	IO_CFG_ts
	Configuration structure for initializing an IO handle. More...

Typedefs
typedef struct io_handle_s	IO_HANDLE_ts
	Opaque handle representing an IO instance.

Functions
ERR_te	io_init_subsys (void)
	Initializes the IO subsystem.
ERR_te	io_deinit_subsys (void)
	Deinitializes the IO subsystem.
ERR_te	io_start_subsys (void)
	Starts the IO subsystem.
ERR_te	io_stop_subsys (void)
	Stops the IO subsystem.
ERR_te	io_init_handle (IO_CFG_ts io_cfg, IO_HANDLE_ts *io_handle_o)
	Initializes and registers an IO handle.
ERR_te	io_deinit_handle (IO_HANDLE_ts const *io_handle)
	Deinitializes an IO handle.
ERR_te	io_write (IO_HANDLE_ts *io_handle, PIN_STATUS_te pin_status)
	Writes a logic level to an IO pin.
ERR_te	io_read (IO_HANDLE_ts const io_handle, PIN_STATUS_te pin_status_o)
	Reads the current logic level of an IO pin.

Detailed Description

Digital IO module public API.

Author: github.com/Baksi675

This module provides a named abstraction over GPIO pins, supporting both digital output (write) and digital input (read) operations. It follows the same subsystem lifecycle pattern used across the project: init → start → run → stop → deinit.

Typical usage:

Initialize the subsystem using io_init_subsys
Populate an IO_CFG_ts with a GPIO configuration and a name
Register a handle using io_init_handle
Start the subsystem using io_start_subsys
Drive or sample the pin using io_write and io_read

Version: 0.1

Date: 2026-01-23

Definition in file io.h.

Classes

Typedefs

Functions

Detailed Description