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-Device tree bindings for Microchip CAP1106, 6 channel capacitive touch sensor
-
-The node for this driver must be a child of a I2C controller node, as the
-device communication via I2C only.
-
-Required properties:
-
- compatible: Must be "microchip,cap1106"
-
- reg: The I2C slave address of the device.
- Only 0x28 is valid.
-
- interrupts: Property describing the interrupt line the
- device's ALERT#/CM_IRQ# pin is connected to.
- The device only has one interrupt source.
-
-Optional properties:
-
- autorepeat: Enables the Linux input system's autorepeat
- feature on the input device.
-
- microchip,sensor-gain: Defines the gain of the sensor circuitry. This
- effectively controls the sensitivity, as a
- smaller delta capacitance is required to
- generate the same delta count values.
- Valid values are 1, 2, 4, and 8.
- By default, a gain of 1 is set.
-
- linux,keycodes: Specifies an array of numeric keycode values to
- be used for the channels. If this property is
- omitted, KEY_A, KEY_B, etc are used as
- defaults. The array must have exactly six
- entries.
-
-Example:
-
-i2c_controller {
- cap1106@28 {
- compatible = "microchip,cap1106";
- interrupt-parent = <&gpio1>;
- interrupts = <0 0>;
- reg = <0x28>;
- autorepeat;
- microchip,sensor-gain = <2>;
-
- linux,keycodes = <103 /* KEY_UP */
- 106 /* KEY_RIGHT */
- 108 /* KEY_DOWN */
- 105 /* KEY_LEFT */
- 109 /* KEY_PAGEDOWN */
- 104>; /* KEY_PAGEUP */
- };
-}