* certain time interval
*
* This function initializes a periodic timer to generate timer interrupt
-* after every time interval in milisecond
+* after every time interval in millisecond
*
* @return On success: Effective interval set in mili-second
* On failure: 0
* after certain time interval
*
* This function initializes a periodic timer to generate a single ticks after
-* certain time interval in milisecond
+* certain time interval in millisecond
*
* @return On success: Effective interval set in mili-second
* On failure: 0