V4L/DVB (5057): Pvrusb2: Stream configuration cleanups

Clean up and tighten logic involving stream configuration.  This
mainly involves changes to pvrusb2-v4l2.c, where we better clarify how
we use the stream configuration enum and implement a cleaner means to
control streaming for a given device node.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
index 19af4d636c3f..d803f24cc9e0 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
@@ -72,10 +72,11 @@
         PVR2_SUBSYS_RUN_ALL )
 
 enum pvr2_config {
-        pvr2_config_empty,
-        pvr2_config_mpeg,
-        pvr2_config_vbi,
-        pvr2_config_radio,
+        pvr2_config_empty,    /* No configuration */
+        pvr2_config_mpeg,     /* Encoded / compressed video */
+        pvr2_config_vbi,      /* Standard vbi info */
+        pvr2_config_pcm,      /* Audio raw pcm stream */
+        pvr2_config_rawvideo, /* Video raw frames */
 };
 
 enum pvr2_v4l_type {