title: Getting access to Raspberry PI registers in C programming
body: <p>I am trying to get access to the register of my Raspberry Pi.</p>
  
  <p>To be a bit more specific, <a href="http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf" rel="nofollow">http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf</a> has some Hardware Timers on page 172-173.</p>
  
  <p>I want to use them because I have to write two functions <code>HW_GetTimer()</code> and <code>HW_ClearTimer()</code>.</p>
  
  <p>I can't find a good way to communicate with those registers. Is this possible? Is there an existing C function that I don't know about?</p>