@ledgerhq/hw-transport-node-hid/README.md

Ledger Hardware Wallet Node implementation of the communication layer, using node-hid

<img src="https://user-images.githubusercontent.com/4631227/191834116-59cf590e-25cc-4956-ae5c-812ea464f324.png" height="100" />

[GitHub](https://github.com/LedgerHQ/ledger-live/),
[Ledger Devs Discord](https://developers.ledger.com/discord-pro),
[Developer Portal](https://developers.ledger.com/)

## @ledgerhq/hw-transport-node-hid

Allows to communicate with Ledger Hardware Wallets.

**\[Node]**/Electron **(HID)** – uses `node-hid` and `usb`.

## API

<!-- Generated by documentation.js. Update this documentation by updating the source code. -->

#### Table of Contents

*   [TransportNodeHid](#transportnodehid)
    *   [Examples](#examples)
    *   [isSupported](#issupported)
    *   [list](#list)
    *   [setListenDevicesDebounce](#setlistendevicesdebounce)
        *   [Parameters](#parameters)
    *   [setListenDevicesPollingSkip](#setlistendevicespollingskip)
        *   [Parameters](#parameters-1)
    *   [setListenDevicesDebug](#setlistendevicesdebug)
    *   [listen](#listen)
        *   [Parameters](#parameters-2)
    *   [open](#open)
        *   [Parameters](#parameters-3)

### TransportNodeHid

**Extends TransportNodeHidNoEvents**

node-hid Transport implementation

#### Examples

```javascript
import TransportNodeHid from "@ledgerhq/hw-transport-node-hid";
...
TransportNodeHid.create().then(transport => ...)
```

#### isSupported

#### list

#### setListenDevicesDebounce

##### Parameters

*   `delay` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)**&#x20;

#### setListenDevicesPollingSkip

##### Parameters

*   `conditionToSkip` **function (): [boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)**&#x20;

#### setListenDevicesDebug

#### listen

##### Parameters

*   `observer` **Observer\<DescriptorEvent<([string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) | null | [undefined](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/undefined))>>**&#x20;

Returns **Subscription**&#x20;

#### open

if path="" is not provided, the library will take the first device

##### Parameters

*   `path` **([string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) | null | [undefined](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/undefined))**&#x20;