blob: d4c195448949e87f2343e50c74f03502e62e3cc1 [file] [log] [blame]
.. _chapter-pw-sys-io-stdio:
.. default-domain:: cpp
.. highlight:: sh
---------------
pw_sys_io_stdio
---------------
The ``pw_sys_io_stdio`` backend implements the ``pw_sys_io`` facade using
stdio.
Why not just use stdio directly?
--------------------------------
The nice thing about using ``pw_sys_io`` is that it's rather easy to get a
board up and running with a target-specific backend. This means when drafting
out a quick application you can write it against ``pw_sys_io`` and, with some
care, the application will be able to run on both host and target devices.
While it's not recommended to use ``pw_sys_io`` for any production
applications, it can be rather helpful for early prototyping.
Setup
=====
This module requires relatively minimal setup:
1. Write code against the ``pw_sys_io`` facade.
2. Specify the ``dir_pw_sys_io_backend`` GN global variable to point to this
backend.
Module usage
============
For the most part, applications built with this backend will behave similarly
to an application built directly against stdio.
Dependencies
============
* ``pw_sys_io`` facade