@ledgerhq/devices
Advanced tools
Package description
@ledgerhq/devices is an npm package that provides a comprehensive set of tools and utilities for interacting with Ledger hardware wallets. It includes functionalities for managing device information, handling firmware updates, and interfacing with various Ledger applications.
List Supported Devices
This feature allows you to retrieve information about a specific Ledger device model. In this example, the code fetches details about the Ledger Nano S model.
const { getDeviceModel } = require('@ledgerhq/devices');
const deviceModel = getDeviceModel('nanoS');
console.log(deviceModel);Identify Device by USB Product ID
This feature helps you identify a Ledger device based on its USB product ID. The code sample demonstrates how to get device information using a specific USB product ID.
const { identifyUSBProductId } = require('@ledgerhq/devices');
const deviceInfo = identifyUSBProductId(0x0001);
console.log(deviceInfo);List All Devices
This feature provides a list of all supported Ledger devices. The code sample prints out the entire list of devices supported by the @ledgerhq/devices package.
const { devices } = require('@ledgerhq/devices');
console.log(devices);This package provides a transport layer for communicating with Ledger devices over HID (Human Interface Device) protocol. It is more focused on the communication aspect rather than device management and information retrieval.
This package is designed specifically for interacting with the Bitcoin application on Ledger devices. It provides functionalities for creating and signing Bitcoin transactions, but does not offer the broader device management features found in @ledgerhq/devices.
Similar to hw-app-btc, this package is tailored for the Ethereum application on Ledger devices. It allows for Ethereum transaction creation and signing, but lacks the comprehensive device management capabilities of @ledgerhq/devices.
Readme
Logic for all Ledger devices.
The USB product IDs will be defined as MMII, encoding a model (MM) and an interface bitfield (II)
Model Ledger Nano S : 0x10 Ledger Blue : 0x00 Ledger Nano X : 0x40
Interface support bitfield Generic HID : 0x01 Keyboard HID : 0x02 U2F : 0x04 CCID : 0x08 WebUSB : 0x10
Type: number
Type: number
Returns DeviceModel
usbProductId numberReturns DeviceModel?
uuid stringReturns BluetoothInfos?
Type: $Keys<any>
Type: {id: DeviceModelId, productName: string, productIdMM: number, legacyUsbProductId: number, usbOnly: boolean, memorySize: number, blockSize: number, bluetoothSpec: Array<{serviceUuid: string, writeUuid: string, notifyUuid: string}>?}
id DeviceModelIdproductName stringproductIdMM numberlegacyUsbProductId numberusbOnly booleanmemorySize numberblockSize numberbluetoothSpec Array<{serviceUuid: string, writeUuid: string, notifyUuid: string}>?Type: {deviceModel: DeviceModel, serviceUuid: string, writeUuid: string, notifyUuid: string}
deviceModel DeviceModelserviceUuid stringwriteUuid stringnotifyUuid stringType: {id: string, productName: string, usbProductId: number, usbOnly: boolean, bluetoothSpec: Array<{serviceUuid: string, writeUuid: string, notifyUuid: string}>?}
master
id DeviceModelIdproductName stringusbProductId numberusbOnly booleanbluetoothSpec Array<{serviceUuid: string, writeUuid: string, notifyUuid: string}>?Type: {deviceModel: DeviceModel, serviceUuid: string, writeUuid: string, notifyUuid: string}
deviceModel DeviceModelserviceUuid stringwriteUuid stringnotifyUuid stringFAQs
Ledger devices
We found that @ledgerhq/devices demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 7 open source maintainers collaborating on the project.
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