zephyr,input-longpress

Description

Input longpress pseudo-device

Listens for key events as an input and produces key events as output
corresponding to short and long press.

Can be optionally be associated to a specific device to listen for events
only from that device.

Example configuration:

#include <zephyr/dt-bindings/input/input-event-codes.h>

longpress {
        input = <&buttons>;
        compatible = "zephyr,input-longpress";
        input-codes = <INPUT_KEY_0>, <INPUT_KEY_1>;
        short-codes = <INPUT_KEY_A>, <INPUT_KEY_B>;
        long-codes = <INPUT_KEY_X>, <INPUT_KEY_Y>;
        long-delay-ms = <1000>;
};

Example output:

# short press
input event: dev=buttons          SYN type= 1 code= 11 value=1 # INPUT_KEY_0 press
# release before one second
input event: dev=buttons          SYN type= 1 code= 11 value=0 # INPUT_KEY_0 release
input event: dev=longpress        SYN type= 1 code= 30 value=1 # INPUT_KEY_A press
input event: dev=longpress        SYN type= 1 code= 30 value=0 # INPUT_KEY_A release

# long press
input event: dev=buttons          SYN type= 1 code= 11 value=1 # INPUT_KEY_0 press
# hold for more than one second
input event: dev=longpress        SYN type= 1 code= 45 value=1 # INPUT_KEY_X press
# wait for release
input event: dev=buttons          SYN type= 1 code= 11 value=0 # INPUT_KEY_0 release
input event: dev=longpress        SYN type= 1 code= 45 value=0 # INPUT_KEY_X release

Properties

Properties not inherited from the base binding file.

Name	Type	Details
`input`	`phandle`	Input device phandle, if not specified listen for input from all devices.
`input-codes`	`array`	Array of input event key codes (INPUT_KEY_* or INPUT_BTN_). This property is required*.
`short-codes`	`array`	Optional array of key codes to be generated for short press (INPUT_KEY_* or INPUT_BTN_*).
`long-codes`	`array`	Array of key codes to be generated for long press (INPUT_KEY_* or INPUT_BTN_). This property is required*.
`long-delay-ms`	`int`	Time delay to register a long press in milliseconds. This property is required.