44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
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Device-Tree bindings for input/gpio_timed_keys.c keyboard driver
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Required properties:
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- compatible = "gpio-timed-keys";
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Optional properties:
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- autorepeat: Boolean, Enable auto repeat feature of Linux input
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subsystem.
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Each button (key) is represented as a sub-node of "gpio-keys":
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Subnode properties:
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- gpios: OF device-tree gpio specification.
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- label: Descriptive name of the key.
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- linux,num_codes: Number of keycodes associated with the key
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- linux,press-times-secs: Times in seconds linked with different
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keycodes
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- linux,key-codes: List of keycodes to be emitted with each detected
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timed presses
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Optional subnode-properties:
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- linux,input-type: Specify event type this button/key generates.
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If not specified defaults to <1> == EV_KEY.
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- debounce-interval: Debouncing interval time in milliseconds.
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If not specified defaults to 5.
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- gpio-key,wakeup: Boolean, button can wake-up the system.
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- gpio-key,name: String, Input device name for this key.
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Example nodes:
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gpio_timed_keys {
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compatible = "gpio-timed-keys";
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#address-cells = <1>;
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#size-cells = <0>;
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power {
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label = "Power";
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gpios = <&gpio1 0 1>;
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linux,num_codes = <2>;
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linux,press-time-secs = < 1 6>;
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linux,key-codes = <KEY_DOWN KEY_ENTER>;
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gpio-key,wakeup;
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};
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...
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