gentoo-overlay/sys-auth/thinkfinger/files/0.3-send-sync-event.patch

--- a/pam/pam_thinkfinger-uinput.c
+++ b/pam/pam_thinkfinger-uinput.c
@@ -34,27 +34,40 @@
 int uinput_cr (int *fd)
 {
 	int retval = 0, ev_size = 0;
-	struct input_event ev = {
+	struct input_event key_ev = {
 		.type = EV_KEY,
 		.code = KEY_ENTER,
 		.time = {0, }
 	};
 
-	ev_size = sizeof (ev);
+	ev_size = sizeof (key_ev);
 
 	/* key press */
-	ev.value = 1;
-	if (write (*fd, &ev, ev_size) != ev_size) {
+	key_ev.value = 1;
+	if (write (*fd, &key_ev, ev_size) != ev_size) {
 		retval = errno;
 		goto out;
 	}
 	/* key release */
-	ev.value = 0;
-	if (write (*fd, &ev, ev_size) != ev_size) {
+	key_ev.value = 0;
+	if (write (*fd, &key_ev, ev_size) != ev_size) {
 		retval = errno;
 		goto out;
 	}
-
+	
+	/* syn event */
+	struct input_event syn_ev = {
+	  .time = {0, },
+	  .type = EV_SYN,
+	  .code = SYN_REPORT,
+	  .value = 0
+	};
+	
+	if (write (*fd, &syn_ev, ev_size) != ev_size) {
+		retval = errno;
+		goto out;
+	}
+    
 out:
 	return retval;
 }