Commit | Line | Data |
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fd05d089 DJ |
1 | Device-Tree bindings for input/gpio_keys.c keyboard driver |
2 | ||
3 | Required properties: | |
4 | - compatible = "gpio-keys"; | |
5 | ||
6 | Optional properties: | |
7 | - autorepeat: Boolean, Enable auto repeat feature of Linux input | |
8 | subsystem. | |
9 | ||
10 | Each button (key) is represented as a sub-node of "gpio-keys": | |
11 | Subnode properties: | |
12 | ||
0a7a8fff | 13 | - gpios: OF device-tree gpio specification. |
fd05d089 DJ |
14 | - label: Descriptive name of the key. |
15 | - linux,code: Keycode to emit. | |
16 | ||
17 | Optional subnode-properties: | |
18 | - linux,input-type: Specify event type this button/key generates. | |
19 | If not specified defaults to <1> == EV_KEY. | |
20 | - debounce-interval: Debouncing interval time in milliseconds. | |
21 | If not specified defaults to 5. | |
22 | - gpio-key,wakeup: Boolean, button can wake-up the system. | |
23 | ||
24 | Example nodes: | |
25 | ||
26 | gpio_keys { | |
27 | compatible = "gpio-keys"; | |
28 | #address-cells = <1>; | |
29 | #size-cells = <0>; | |
30 | autorepeat; | |
31 | button@21 { | |
32 | label = "GPIO Key UP"; | |
33 | linux,code = <103>; | |
34 | gpios = <&gpio1 0 1>; | |
35 | }; | |
36 | ... |