Android Development: Using ADB to Connect an Android Phone on Linux

Introduction

Due to Linux system security settings and other reasons, non-root users are restricted when using external devices or certain hardware interfaces. The official SDK provided by Google cannot work directly, such as not finding the device or displaying a bunch of question marks and Permission Denied.

Method

I remember seeing Google's official solution before, which is to grant read and write permissions for specified USB devices to ordinary users.

First, use the lsusb command to view the USB devices connected to the computer, find the vendor ID and product ID corresponding to the Android phone, such as Bus 001 Device 004: ID 0bda:0001, then 0bda and 0001 correspond to the vendor ID and product ID respectively.

Tip: Check the lsusb results once before connecting the phone; after connecting the phone, find the newly added line in lsusb. Some small domestic manufacturers may set their vendor ID to Google's or HTC's. It doesn't really matter what the vendor ID is set to; it's just an identifier.

Second step, edit the /etc/udev/rules.d/70-android.rules file. Write the following content (tested on Ubuntu):

SUBSYSTEM=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="0001",MODE="0666"

Replace 0bda and 0001 with the corresponding vendor ID and product ID respectively.

Third step, grant read and execute permissions: chmod a+rx /etc/udev/rules.d/70-android.rules

Finally, unplug the phone, restart adb and plug the phone back in: adb kill-server

Check the device list to verify success adb devices

Actually, connecting an Android phone on Linux is much more convenient than on Windows; at least you don't have to search all over the world for drivers.