.. _snippet-del-default-aliases:

Delete Default Devicetree Aliases Snippet (del-default-aliases)
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.. code-block:: console

   west build -S del-default-aliases [...]

Overview
********

This snippet deletes common default alias properties from the
:zephyr:ref:`devicetree`, e.g. such as :dts:`sw0 = &gpio_key_node;`, or
:dts:`led0 = &gpio_led_node;`, or :dts:`pwm-led0 = &pwm_led_node;`.
In general, these are only expected from simple examples or test cases but
can potentially cause ugly side effects if, for example, both an application
and a Zephyr subsystem simultaneously initialize interrupt callbacks on the
underlying hardware.

In such a constellation, for example the :zephyr:code-sample:`lvgl`
with the :dtcompatible:`zephyr,input-longpress` function in the input system
on exactly the same GPIO pin, every second event would not be handled there
for by the input system but at the application level and would therefore be
lost for the input system. The end user is free to use this snippet in such
cases or to use another adequate solution.

Current Deletions
*****************

.. literalinclude:: ../../../../../bridle/snippets/del-default-aliases/del-default-aliases.overlay
   :caption: del-default-aliases.overlay
   :language: DTS
   :encoding: ISO-8859-1
   :linenos:
   :prepend: / {
   :start-at: aliases {
   :end-at: };
   :append: };