Name
kfifo_out_peek — 
     gets some data from the fifo
 
Synopsis
 kfifo_out_peek ( |  fifo,  | 
|   |  buf,  | 
|   |  n); | 
 
Arguments
fifo
     address of the fifo to be used
    
buf
     pointer to the storage buffer
    
n
     max. number of elements to get
    
Description
   This macro get the data from the fifo and return the numbers of elements
   copied. The data is not removed from the fifo.
   
   Note that with only one concurrent reader and one concurrent
   writer, you don't need extra locking to use these macro.