import { BitValue, Event, Line } from 'libgpiod';
import { LineEvent, EventListener, EventType } from './events';
import { GPIOLineReservation } from './gpio-line-reservation';
import { Debouncer } from './debouncer';
export declare class GPIOInputLine extends GPIOLineReservation {
    private interval?;
    private emitter;
    constructor(line: Line, pollingInterval: number | undefined, releaseCallback: () => void);
    private propagateEvent;
    /**
     * Instantly poll kernel's events queue
     */
    readEvents(): void;
    addListener(eventName: EventType, listener: EventListener<LineEvent>): void;
    removeListener(eventName: EventType, listener: EventListener<LineEvent>): void;
    once(eventName: EventType, listener: EventListener<LineEvent>): void;
    /**
     * Wait for a new line event.
     * This method will poll the queue and propagate any previous events and wait for new one.
     * @param uSec maximum number of micro seconds to wait for an event
     * @param capture if true, the event will not be propagated to listeners
     */
    wait(uSec: number, capture?: boolean): Event | null;
    getValue(): BitValue;
    createDebouncer(timeout: number, pressValue?: BitValue, holdTimes?: number[]): Debouncer;
    release(): void;
}
//# sourceMappingURL=gpio-input-line.d.ts.map