tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1Device tree bindings for Atmel capacitive touch device, typically
2an Atmel touch sensor connected to AtmegaXX MCU running firmware
3based on Qtouch library.
4
5The node for this device must be a child of a I2C controller node, as the
6device communicates via I2C.
7
8Required properties:
9
10 compatible: Must be "atmel,captouch".
11 reg: The I2C slave address of the device.
12 interrupts: Property describing the interrupt line the device
13 is connected to. The device only has one interrupt
14 source.
15 linux,keycodes: Specifies an array of numeric keycode values to
16 be used for reporting button presses. The array can
17 contain up to 8 entries.
18
19Optional properties:
20
21 autorepeat: Enables the Linux input system's autorepeat
22 feature on the input device.
23
24Example:
25
26 atmel-captouch@51 {
27 compatible = "atmel,captouch";
28 reg = <0x51>;
29 interrupt-parent = <&tlmm>;
30 interrupts = <67 IRQ_TYPE_EDGE_FALLING>;
31 linux,keycodes = <BTN_0>, <BTN_1>,
32 <BTN_2>, <BTN_3>,
33 <BTN_4>, <BTN_5>,
34 <BTN_6>, <BTN_7>;
35 autorepeat;
36 };