title: Running test with "usbtest" on Ubuntu
body: <p>i am newbie to these modules and device drivers and all.I would like run some sample tests on ubuntu main tree USB driver. I have seen <a href="http://www.linux-usb.org/usbtest/" rel="nofollow">this</a> document and was trying to do the same.I do inserted the "usbtest" module and while trying to run </p>
  
  <blockquote>
    <p>usbtest</p>
  </blockquote>
  
  <p>command, terminal says the command not found</p>
  
  <p>I have tried to insert g_zero module by running</p>
  
  <blockquote>
    <p>modprobe g_zero</p>
  </blockquote>
  
  <p>,but it says</p>
  
  <blockquote>
    <p>modprobe: ERROR: could not insert 'g_zero': No such device</p>
  </blockquote>
  
  <p>and </p>
  
  <blockquote>
    <p>modprobe --force g_zero says</p>
    
    <p>modprobe: ERROR: could not insert 'g_zero': Exec format error</p>
  </blockquote>
  
  <p>Anyone Please post better simple explanation..</p>
  
  <p>I'm using Ubuntu 14.04.3 LTS and my kernel is 3.13.0-24-generic </p>
  
  <p>Also please suggest any method to test linux main tree drivers through command line.</p>