gpio-leds

Description

Group of GPIO-controlled LEDs.

Each LED is defined in a child node of the gpio-leds node.

Examples

/ {
  leds {
    compatible = "gpio-leds";
    /*
     * led_0 is pin 1 on gpio0.
     * The LED is on when the pin is low, and off when the pin is high.
     */
    led_0 {
      gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
    };
    /*
     * led_1 is pin 2 on gpio0.
     * The LED is on when the pin is high, and off when it is low.
     */
    led_1 {
      gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
    };
    /*
     * 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.
     */
    led_2 {
      gpios = <&gpio1 15 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
    };
  };
};

Properties

Top level properties

No top-level properties.

Child node properties

Name	Type	Details
`gpios`	`phandle-array`	This property is required.
`label`	`string`	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 Important properties for more information.