The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/input/gpio-beeper.txt

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    1 * GPIO beeper device tree bindings
    2 
    3 Register a beeper connected to GPIO pin.
    4 
    5 Required properties:
    6 - compatible:   Should be "gpio-beeper".
    7 - gpios:        From common gpio binding; gpio connection to beeper enable pin.
    8 
    9 Example:
   10         beeper: beeper {
   11                 compatible = "gpio-beeper";
   12                 gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
   13         };

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