title: What is adb device -l listing?
body: <pre><code>adb devices -l
  devices [-l]                  - list all connected devices
                                  ('-l' will also list device qualifiers)
  </code></pre>
  
  <p>When I execute it I am getting like </p>
  
  <pre><code>padmakumar@padmakumar-desktop:~$ adb devices -l
  List of devices attached 
  Medfield14ABxxxx       device usb:2-1.5
  Ztedfield14Axxxx       device usb:2-1.6
  emulator-5554          device
  015d2994ec2xxx         device usb:2-1.5 product:nakasi model:Nexus_7 device:grouper
  
  
  Medfield14ABA072       device usb:1-1.1 ( changing to different port)
  </code></pre>
  
  <p>when I change to different port its displaying the bus number as 1 and 2 as displayed in <code>lsusb</code> command</p>
  
  <p>what is this device usb:2-<strong>1.5</strong> ,<strong>1.6</strong> ,<strong>1.1</strong> ?</p>
  
  <p>so what this -l will do,whats the exact meaning for the device qualifiers?</p>
  
  <p>I tried with <code>lsusb</code> but the information is different that adb device -l.</p>
  
  <pre><code>padmakumar@padmakumar-desktop:~$ lsusb
  Bus 002 Device 008: ID 18d1:4e42 Google Inc. 
  Bus 002 Device 005: ID 17ef:7470 Lenovo 
  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 046d:c03d Logitech, Inc. M-BT96a Pilot Optical Mouse
  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
  </code></pre>