| .. _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 |