path: root/dts/Bindings/input/atmel,captouch.txt
blob: fe9ee5c53bcceaf1b4a4a5794685ee474821be09 (plain) (tree)

Device tree bindings for Atmel capacitive touch device, typically
an Atmel touch sensor connected to AtmegaXX MCU running firmware
based on Qtouch library.

The node for this device must be a child of a I2C controller node, as the
device communicates via I2C.

Required properties:

	compatible:	Must be "atmel,captouch".
	reg:		The I2C slave address of the device.
	interrupts:	Property describing the interrupt line the device
			is connected to. The device only has one interrupt
	linux,keycodes:	Specifies an array of numeric keycode values to
			be used for reporting button presses. The array can
			contain up to 8 entries.

Optional properties:

	autorepeat:	Enables the Linux input system's autorepeat
			feature on the input device.


	atmel-captouch@51 {
		compatible = "atmel,captouch";
		reg = <0x51>;
		interrupt-parent = <&tlmm>;
		interrupts = <67 IRQ_TYPE_EDGE_FALLING>;
		linux,keycodes = <BTN_0>, <BTN_1>,
			<BTN_2>, <BTN_3>,
			<BTN_4>, <BTN_5>,
			<BTN_6>, <BTN_7>;