blob: 7190c99d7611f8a3904fbe20f2a045abbdba51f2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
Device-Tree bindings for input/gpio_keys.c keyboard driver
Required properties:
- compatible = "gpio-keys";
Optional properties:
- autorepeat: Boolean, Enable auto repeat feature of Linux input
subsystem.
Each button (key) is represented as a sub-node of "gpio-keys":
Subnode properties:
- gpios: OF devcie-tree gpio specificatin.
- label: Descriptive name of the key.
- linux,code: Keycode to emit.
Optional subnode-properties:
- linux,input-type: Specify event type this button/key generates.
If not specified defaults to <1> == EV_KEY.
- debounce-interval: Debouncing interval time in milliseconds.
If not specified defaults to 5.
- gpio-key,wakeup: Boolean, button can wake-up the system.
Example nodes:
gpio_keys {
compatible = "gpio-keys";
#address-cells = <1>;
#size-cells = <0>;
autorepeat;
button@21 {
label = "GPIO Key UP";
linux,code = <103>;
gpios = <&gpio1 0 1>;
};
...
|
