https://github.com/iodn/android-usb-device-info

Android APP to inspect USB devices with full descriptor and HID details
https://github.com/iodn/android-usb-device-info

android apk fdroid input-devices usb-debugging usb-descriptors usb-hid

Last synced: 5 months ago
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Android APP to inspect USB devices with full descriptor and HID details

Host: GitHub
URL: https://github.com/iodn/android-usb-device-info
Owner: iodn
Created: 2026-01-10T23:08:20.000Z (5 months ago)
Default Branch: master
Last Pushed: 2026-01-12T03:57:59.000Z (5 months ago)
Last Synced: 2026-01-12T06:57:29.317Z (5 months ago)
Topics: android, apk, fdroid, input-devices, usb-debugging, usb-descriptors, usb-hid
Language: Dart
Homepage:
Size: 1.86 MB
Stars: 0
Watchers: 0
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

# USBDevInfo - USB Device Inspector for Android

**USBDevInfo** is an Android application for discovering, inspecting, and analyzing USB devices connected to your phone or tablet.
It exposes the same low-level USB information that Android sees, but presents it in a clear, structured, and human-readable way.

The app is designed for developers, reverse-engineers, hardware hackers, and power users who need to understand exactly what a USB device reports: vendor IDs, configurations, interfaces, endpoints, HID descriptors, power requirements, and more.

USBDevInfo works fully offline, stores all data locally, and never transmits device information to any server.

## Overview

- Live discovery of USB devices connected via OTG, hubs, or accessories

- Full USB descriptor inspection (device, configuration, interface, endpoint)

- HID and input device analysis (keyboards, mice, gamepads, etc.)

- Built-in offline USB ID database for vendor and product name resolution

- Per-device permission model that matches Android’s USB security system

- Persistent device history for fast comparison and debugging

## Features

### USB device inspection

- Detect all connected USB devices in real time

- Display Vendor ID (VID) and Product ID (PID)

- Resolve vendor and product names from the built-in `usb.ids` database

- Show device class, subclass, and protocol

### Detailed descriptor view

- USB specification version and negotiated speed

- Configurations, interfaces, and endpoint layouts

- Maximum power draw and power attributes

- Raw device descriptor fields when permission is granted

### HID & input devices

- Detect keyboards, mice, joysticks, and other HID devices

- Show Android input sources (keyboard, mouse, joystick, touch, etc.)

- Display motion axes and ranges for advanced controllers

- Parse HID report descriptors and provide a readable summary

### Advanced device data (with permission)

- String descriptors (manufacturer, product, serial, interface strings)

- Raw descriptor tree parsed into structured fields

- Device state queries:

- GET_STATUS

- GET_CONFIGURATION

- GET_INTERFACE (where supported)

### Device history

- Automatically records every inspected device

- Reopen previous devices even after disconnect

- Search by name, VID:PID, serial, or device path

- Remove or restore history entries

### Permission-aware design

- Clearly indicates when Android USB permission is required

- Explains why some fields are unavailable without permission

- Permissions are requested per device, not globally

### Offline USB ID database

- Ships with a built-in USB vendor/product database

- No dependency on online services at runtime

- Optional manual database update from Settings

## Privacy

USBDevInfo is designed for sensitive environments.

- No analytics

- No telemetry

- No network access for device data

- All history is stored locally on your device

- USB descriptors are never uploaded or shared

## Typical use cases

- Identify unknown USB devices

- Debug OTG cables, hubs, and adapters

- Verify VID/PID and interface layouts

- Inspect HID devices and controllers

- Reverse-engineer USB accessories

- Validate that a device is enumerating correctly

## Requirements

- Android device with USB host (OTG) support

- USB permission is required **per device** to access:

- Manufacturer and product strings

- Serial numbers

- Raw USB descriptors

- HID report descriptors

## Installation

1. Download from Google Play:

[ Get it on Google Play ](https://play.google.com/store/apps/details?id=org.kaijinlab.usbdevinfo)

Or download the latest APK from the Releases section.

2. Install the application:

- Enable installation from unknown sources if needed.

- Follow the on-screen instructions.

3. Launch and connect a USB device:

- Plug in a USB device via OTG or hub.

- Grant permission when prompted.

- Tap the device to inspect its details.

## Usage

1. Connect a USB device.

2. Open USBDevInfo.

3. Select the device from the list.

4. Grant permission if requested.

5. Explore:

- Descriptors

- Interfaces

- Endpoints

- HID and input data

- Power and configuration details