GPIO LEDs 바인딩

:orphan:

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.. dtcompatible:: gpio-leds
.. _dtbinding_gpio_leds:

gpio-leds
#########

Vendor: :ref:`Generic or vendor-independent <dt_no_vendor>`

Description
***********



.. code-block:: none

   This allows you to define a group of LEDs. Each LED in the group is
   controlled by a GPIO. Each LED is defined in a child node of the
   gpio-leds node.

   Here is an example which defines three LEDs in the node /leds:

   / {
   	leds {
   		compatible = "gpio-leds";
   		led_0 {
   			gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
   		};
   		led_1 {
   			gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
   		};
   		led_2 {
   			gpios = <&gpio1 15 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
   		};
   	};
   };

   Above:

   - led_0 is pin 1 on gpio0. The LED is on when the pin is low,
     and off when the pin is high.
   - led_1 is pin 2 on gpio0. The LED is on when the pin is high,
     and off when it is low.
   - led_2 is pin 15 on gpio1. The LED is on when the pin is low,
     and the pin's internal pull-up resistor should be enabled.

Properties
**********

Top level properties
====================

No top-level properties.

Child node properties
=====================

.. list-table::
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   :header-rows: 1

   * - Name
     - Type
     - Details

   * - ``gpios``
     - ``phandle-array``
     - This property is **required**.

   * - ``label``
     - ``string``
     - .. code-block:: none

          Human readable string describing the LED. It can be used by an
          application to identify this LED or to retrieve its number/index
          (i.e. child node number) on the parent device.



       See :ref:`dt-important-props` for more information.