3 * Executes a marker when /proc/marker-example is opened.
5 * (C) Copyright 2007 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
11 #include <linux/module.h>
12 #include <linux/marker.h>
13 #include <linux/sched.h>
14 #include <linux/proc_fs.h>
16 struct proc_dir_entry
*pentry_example
= NULL
;
18 static int my_open(struct inode
*inode
, struct file
*file
)
22 trace_mark(subsystem_event
, "%d %s", 123, "example string");
23 for (i
=0; i
<10; i
++) {
24 trace_mark(subsystem_eventb
, MARK_NOARGS
);
29 static struct file_operations mark_ops
= {
33 static int example_init(void)
35 printk(KERN_ALERT
"example init\n");
36 pentry_example
= create_proc_entry("marker-example", 0444, NULL
);
38 pentry_example
->proc_fops
= &mark_ops
;
44 static void example_exit(void)
46 printk(KERN_ALERT
"example exit\n");
47 remove_proc_entry("marker-example", NULL
);
50 module_init(example_init
)
51 module_exit(example_exit
)
53 MODULE_LICENSE("GPL");
54 MODULE_AUTHOR("Mathieu Desnoyers");
55 MODULE_DESCRIPTION("Linux Trace Toolkit example");
This page took 0.029704 seconds and 4 git commands to generate.