ADB Error : no permissions (udev requires plugdev group membership)

1. adb-devices - got following error

$ adb devices

List of devices attached

41a6a455 no permissions (udev requires plugdev group membership); see [http://developer.android.com/tools/device.html]

2. Find the bus and device id assigned by the kernel:

$ lsusb 

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 413c:2113 Dell Computer Corp. 
Bus 001 Device 002: ID 413c:301a Dell Computer Corp. 
Bus 001 Device 008: ID 05c6:9091 Qualcomm, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Note: The path comes from the output of lsusb: 001 is the Bus, and 008 is the Device.
lsusb: {idVendor=05c6 : idProduct=9091}

3. Check the permissions of the device file

$ ls -la /dev/bus/usb/001/008
crw-rw-r-- 1 root root 189, 5 Jul  3 11:11 /dev/bus/usb/001/008

4. Create a udev rules file, let’s say: /etc/udev/rules.d/51-android.rules

$ sudo vi /etc/udev/rules.d/51-android.rules

5. Add one rule for each unique idVendor:

SUBSYSTEM=="usb", ATTR{idVendor}=="05c6", ATTR{idProduct}=="9091", MODE="0666", GROUP="plugdev"

6. Restart udev

$ sudo udevadm control –reload-rules 
$ sudo service udev restart

7. Unplug/replug your device

8. Check the permissions of the device file

$ ls -la /dev/bus/usb/001/008
crw-rw-r-- 1 root plugdev 189, 9 Jul  3 11:48 /dev/bus/usb/001/008

9. To shoe devices using adb devices

$ adb devices

List of devices attached

41a6a455 device

Ref:

http://www.janosgyerik.com/adding-udev-rules-for-usb-debugging-android-devices/

https://stackoverflow.com/questions/14460656/android-debug-bridge-adb-device-no-permissions