vb2_v4l2_buf_queue   10 drivers/media/v4l2-core/v4l2-trace.c EXPORT_TRACEPOINT_SYMBOL_GPL(vb2_v4l2_buf_queue);
vb2_v4l2_buf_queue  250 include/trace/events/v4l2.h DEFINE_EVENT(vb2_v4l2_event_class, vb2_v4l2_buf_queue,