--- a/libutil/op_cpufreq.h
+++ b/libutil/op_cpufreq.h
@@ -2,11 +2,12 @@
  * @file op_cpufreq.h
  * get cpu frequency declaration
  *
- * @remark Copyright 2003 OProfile authors
+ * @remark Copyright 2011 OProfile authors
  * @remark Read the file COPYING
  *
  * @author John Levon
  * @author Philippe Elie
+ * @author Suravee Suthikulpanit
  */
 
 #ifndef OP_CPUFREQ_H
@@ -17,8 +18,8 @@
 #endif
 
 /*
- * return the estimated cpu frequency in Mhz through
- * parsing /proc/cpuinfo, return 0 if this information
+ * return the estimated cpu frequency in Mhz,
+ * return 0 if this information
  * is not avalaible e.g. sparc64 with a non SMP kernel
  */
 double op_cpu_frequency(void);