title: Over-current issue on USB port - ignore_oc flag not working
body: <p>I have connected Lenovo's DVD RW to my linux system (kernel - 2.6.34). The kernel is disconnecting the writer with overcurrent issue.</p>
  
  <p>kern.log -</p>
  
  <pre><code>Feb  9 14:09:53 base0-0-0-11-0-11-1 kernel: hub 2-1:1.0: over-current change on port 1
  </code></pre>
  
  <p>I turned on ignore_oc flag but i am still receving the errors and my DVD is not being detected.</p>
  
  <pre><code>root@base0-0-0-11-0-11-1:/root&gt; cat /sys/module/ehci_hcd/parameters/ignore_oc
  Y
  root@base0-0-0-11-0-11-1:/root&gt;
  </code></pre>
  
  <p>kern.log -</p>
  
  <pre><code>Feb  9 14:09:53 base0-0-0-11-0-11-1 kernel: ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00, overcurrent ignored
  </code></pre>
  
  <p>Can someone pls help?</p>
  
  <p>Thanks.</p>