Solve ADB devices under Ubuntu:???????????? No permission

Use ADB devices appears as follows:

List of devices attached

???????????? No Permissions

at the same time DDMS in The display device name also displays ???????????? , you cannot display the process name, and you cannot view Log .

Workaround:

1 , setting USB Permissions

because Ubuntu Such systems are default to non- Root identity is running, you want to use USB debugging, Need sudo support.

$ lsusb

Bus 002 Device 002:id 8087:0024 Intel Corp Integrated rate Matching Hub
Bus 002 Device 001:id 1d6b:0002 Linux Foundation 2.0 root Hub
Bus 001 Device 003:id 19d2:0249 ZTE WCDMA Technologies MSM
Bus 001 Device 002:id 8087:0024 Intel Corp Integrated rate Matching Hub
Bus 001 Device 001:id 1d6b:0002 Linux Foundation 2.0 root Hub
Bus 004 Device 001:id 1d6b:0003 Linux Foundation 3.0 root Hub
Bus 003 Device 002:id 17ef:6019 Lenovo
Bus 003 Device 001:id 1d6b:0002 Linux Foundation 2.0 root Hub

list,Bus 001 Device 003:id 19d2:0249 ZTE WCDMA Technologies MSM .  This behavior ZTE Phone's USB use the port, record it, ID to 19d2 according to the information on the Internet, as a result of subsequent use Android the system has more and more mobile phones, each of which is assigned Idvendor , but the workaround is the same.

$sudo vim/etc/udev/rules.d/70-android.rules

Add the following content:

subsystem== "USB", attrs{idvendor}== "19d2", attrs{idproduct}== "0249", mode= "0666"

one of the Idvendor idproduct refers to USB of the ID can use Lsusb query to get.

For example, I have: Before you connect to other peripherals, just find the last one. Root Hub this line of attention.

ID 19d2 is idvendor ,0249 is idproduct

Run command, restart Udev :

$sudo chmod a+rx/etc/udev/rules.d/70-android.rules

$sudo Service Udev Restart

2 , do not need to restart the computer, reboot ADB server down on OK

( very important ) Unplug the USB Reconnect to perform:

sudo./adb kill-server

./ADB devices

./adb Root ( This step is important .  )