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/serio/ps2-gpio.txt

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    1 Device-Tree binding for ps/2 gpio device
    2 
    3 Required properties:
    4         - compatible = "ps2-gpio"
    5         - data-gpios: the data pin
    6         - clk-gpios: the clock pin
    7         - interrupts: Should trigger on the falling edge of the clock line.
    8 
    9 Optional properties:
   10         - write-enable: Indicates whether write function is provided
   11         to serio device. Possibly providing the write fn will not work, because
   12         of the tough timing requirements.
   13 
   14 Example nodes:
   15 
   16 ps2@0 {
   17         compatible = "ps2-gpio";
   18         interrupt-parent = <&gpio>;
   19         interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
   20         data-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
   21         clk-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
   22         write-enable;
   23 };

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