#ifndef _TP_SAMPLES_TRACE_H
  #define _TP_SAMPLES_TRACE_H
  
  #include <linux/proc_fs.h>	/* for struct inode and struct file */
  #include <linux/tracepoint.h>

  DECLARE_TRACE(subsys_event,

  	TP_PROTO(struct inode *inode, struct file *file),
  	TP_ARGS(inode, file));

  DECLARE_TRACE_NOARGS(subsys_eventb);

  #endif