GPIO
====

.. contents::
   :local:

Background
----------

We use ``sysfs`` GPIO because it is easy to understand and
instructive.  It is deprecated and unmaintained in the kernel
though. See `this post
<https://forums.raspberrypi.com/viewtopic.php?t=343514>`__ for much
information about this.

The replacement for ``sysfs`` GPIO is ``libgpiod`` (`source
<https://github.com/brgl/libgpiod>`__ and `docs
<https://libgpiod.readthedocs.io/>`__).

Class Description
-----------------

.. doxygenclass:: SysFS_GPIO_Pin
   :members: