1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index 0d23e0a90c77..05e8ee06071b 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -80,6 +80,7 @@ typedef void (*cam_pkt_op) (struct gspca_dev *gspca_dev,
                                 struct gspca_frame *frame,
                                 __u8 *data,
                                 int len);
+typedef int (*cam_get_buff_size_op) (struct gspca_dev *gspca_dev, int mode);
 
 struct ctrl {
         struct v4l2_queryctrl qctrl;
@@ -106,6 +107,7 @@ struct sd_desc {
         cam_jpg_op get_jcomp;
         cam_jpg_op set_jcomp;
         cam_qmnu_op querymenu;
+        cam_get_buff_size_op get_buff_size; /* optional */
 };
 
 /* packet types when moving from iso buf to frame buf */