test: add a comment

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/test/litest-int.h b/test/litest-int.h
index ab611a5686fcdadbf476dd2bab0a13a126a123fb..ffa30a74343fa2e1a01eca6b098702ff00743879 100644 (file)
--- a/test/litest-int.h
+++ b/test/litest-int.h
@@ -97,8 +97,8 @@ struct litest_device_interface {
        struct input_event *touch_move_events;
        struct input_event *touch_up_events;
 
-       int min[2];
-       int max[2];
+       int min[2]; /* x/y axis minimum */
+       int max[2]; /* x/y axis maximum */
 };
 
 void litest_set_current_device(struct litest_device *device);