diff -r 8ba4c2df2736 linux/drivers/media/video/videobuf-core.c
--- a/linux/drivers/media/video/videobuf-core.c	Tue Apr 08 13:36:56 2008 -0300
+++ b/linux/drivers/media/video/videobuf-core.c	Tue Apr 08 15:31:45 2008 -0300
@@ -314,6 +314,9 @@ int videobuf_mmap_free(struct videobuf_q
 int videobuf_mmap_free(struct videobuf_queue *q)
 {
 	int ret;
+
+	dprintk(1, "%s called\n", __func__);
+
 	mutex_lock(&q->vb_lock);
 	ret = __videobuf_mmap_free(q);
 	mutex_unlock(&q->vb_lock);
@@ -327,6 +330,8 @@ static int __videobuf_mmap_setup(struct 
 {
 	unsigned int i;
 	int err;
+
+	dprintk(1, "%s called\n", __func__);
 
 	MAGIC_CHECK(q->int_ops->magic, MAGIC_QTYPE_OPS);
 
diff -r 8ba4c2df2736 v4l2-apps/test/capture_example.c
--- a/v4l2-apps/test/capture_example.c	Tue Apr 08 13:36:56 2008 -0300
+++ b/v4l2-apps/test/capture_example.c	Tue Apr 08 15:31:45 2008 -0300
@@ -178,12 +178,8 @@ read_frame                      (void)
 }
 
 static void
-mainloop                        (void)
+mainloop                        (int count)
 {
-	unsigned int count;
-
-	count = 1000;
-
 	while (count-- > 0) {
 		for (;;) {
 			fd_set fds;
@@ -670,7 +666,17 @@ main                            (int    
 
 	start_capturing ();
 
-	mainloop ();
+	mainloop (5);
+
+	stop_capturing ();
+
+	uninit_device ();
+
+	init_device ();
+
+	start_capturing ();
+
+	mainloop (5);
 
 	stop_capturing ();