title: how to find proper driver code in android source code
body: <p>For example, if I want to find the WIFI card driver source code for Nexus S, what should I do?</p>
  
  <p>It's hard to find the model name of the WIFI card used in specific android smartphone like Nexus S (<code>lspci</code> doesn't work, I think).</p>
  
  <p>Can anyone give me a clue? 
  Thanks!</p>