V4L/DVB (4240): Various V4L control enhancements in pvrusb2

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
index e9adef9..779c27e 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
@@ -153,6 +153,10 @@
 /* Retrieve a control handle given its V4L ID (if any) */
 struct pvr2_ctrl *pvr2_hdw_get_ctrl_v4l(struct pvr2_hdw *,unsigned int ctl_id);
 
+/* Retrieve a control handle given its immediate predecessor V4L ID (if any) */
+struct pvr2_ctrl *pvr2_hdw_get_ctrl_nextv4l(struct pvr2_hdw *,
+					    unsigned int ctl_id);
+
 /* Commit all control changes made up to this point */
 int pvr2_hdw_commit_ctl(struct pvr2_hdw *);