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/touchscreen/ektf2127.txt

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    1 * Elan eKTF2127 I2C touchscreen controller
    2 
    3 Required properties:
    4  - compatible             : "elan,ektf2127" or "elan,ektf2132"
    5  - reg                    : I2C slave address of the chip (0x40)
    6  - interrupts             : interrupt specification for the ektf2127 interrupt
    7  - power-gpios            : GPIO specification for the pin connected to the
    8                             ektf2127's wake input. This needs to be driven high
    9                             to take ektf2127 out of its low power state
   10 
   11 For additional optional properties see: touchscreen.txt
   12 
   13 Example:
   14 
   15 i2c@00000000 {
   16         ektf2127: touchscreen@15 {
   17                 compatible = "elan,ektf2127";
   18                 reg = <0x15>;
   19                 interrupt-parent = <&pio>;
   20                 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>
   21                 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
   22                 touchscreen-inverted-x;
   23                 touchscreen-swapped-x-y;
   24         };
   25 };

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