V4L/DVB (8104): cx18/ivtv: ioctl debugging improvements

Completely rely on the video_ioctl2 debugging facilities rather than
doing it ourselves.

Fill in some missing fields in ivtv with VIDIOC_G_FBUF.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 8058473..f3d2050 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -190,8 +190,8 @@
 	s->v4l2dev->type =
 		VID_TYPE_CAPTURE | VID_TYPE_TUNER | VID_TYPE_TELETEXT |
 		VID_TYPE_CLIPPING | VID_TYPE_SCALES | VID_TYPE_MPEG_ENCODER;
-	snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "cx18%d %s",
-			cx->num, s->name);
+	snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "cx18-%d",
+			cx->num);
 
 	s->v4l2dev->minor = minor;
 	s->v4l2dev->dev = &cx->dev->dev;