import type { TurboModule } from 'react-native';
export type ControlLine = 'RTS' | 'CTS' | 'DTR' | 'DSR' | 'CD' | 'RI';
export type FlowControl = 'NONE' | 'RTS_CTS' | 'DTR_DSR' | 'XON_XOFF' | 'XON_XOFF_INLINE';
export type PortId = {
    deviceId: number;
    portNumber: number;
    usbVendorId: number;
    usbProductId: number;
    /**
     * Whether the app currently holds Android USB permission to access this
     * device (via the system attach dialog or a prior permission request).
     */
    hasPermission: boolean;
};
export type PortPickerLabels = {
    titleSelectPort?: string;
    titleNoPortsAvailable?: string;
    messageNoPortsAvailable?: string;
};
export type PortFilter = {
    usbVendorId?: number;
    usbProductId?: number;
};
export interface Spec extends TurboModule {
    findAllDrivers(): Promise<ReadonlyArray<PortId>>;
    showPortPicker(filters: ReadonlyArray<PortFilter>, labels?: PortPickerLabels): Promise<PortId>;
    open(deviceId: number, portNumber: number, baudRate: number, dataBits: number, stopBits: number, parity: number): Promise<void>;
    close(deviceId: number, portNumber: number): Promise<void>;
    isOpen(deviceId: number, portNumber: number): boolean;
    write(deviceId: number, portNumber: number, data: ReadonlyArray<number>, timeout: number): Promise<void>;
    startReading(deviceId: number, portNumber: number): Promise<void>;
    stopReading(deviceId: number, portNumber: number): Promise<void>;
    setParameters(deviceId: number, portNumber: number, baudRate: number, dataBits: number, stopBits: number, parity: number): Promise<void>;
    setDTR(deviceId: number, portNumber: number, value: boolean): Promise<void>;
    setRTS(deviceId: number, portNumber: number, value: boolean): Promise<void>;
    getDTR(deviceId: number, portNumber: number): Promise<boolean>;
    getRTS(deviceId: number, portNumber: number): Promise<boolean>;
    getCD(deviceId: number, portNumber: number): Promise<boolean>;
    getCTS(deviceId: number, portNumber: number): Promise<boolean>;
    getDSR(deviceId: number, portNumber: number): Promise<boolean>;
    getRI(deviceId: number, portNumber: number): Promise<boolean>;
    getControlLines(deviceId: number, portNumber: number): Promise<ReadonlyArray<string>>;
    getSupportedControlLines(deviceId: number, portNumber: number): Promise<ReadonlyArray<string>>;
    setFlowControl(deviceId: number, portNumber: number, flowControl: string): Promise<void>;
    getFlowControl(deviceId: number, portNumber: number): Promise<string>;
    getSupportedFlowControl(deviceId: number, portNumber: number): Promise<ReadonlyArray<string>>;
    setBreak(deviceId: number, portNumber: number, value: boolean): Promise<void>;
    purgeHwBuffers(deviceId: number, portNumber: number, purgeWriteBuffers: boolean, purgeReadBuffers: boolean): Promise<void>;
    getSerial(deviceId: number, portNumber: number): Promise<string>;
    requestPermission(deviceId: number): Promise<boolean>;
    addListener(eventName: string): void;
    removeListeners(count: number): void;
}
declare const _default: Spec | null;
export default _default;
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