V4L/DVB (8910): gspca: Add support of image transfer by bulk and minor change.

- image transfer by bulk
- set the max number of transfer URS's to 4 (was 16)

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index c17625cff9ba..78a35a88cf97 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -49,8 +49,8 @@ extern int gspca_debug;
         } while (0)
 
 #define GSPCA_MAX_FRAMES 16     /* maximum number of video frame buffers */
-/* ISOC transfers */
-#define MAX_NURBS 16            /* max number of URBs */
+/* image transfers */
+#define MAX_NURBS 4             /* max number of URBs */
 #define ISO_MAX_PKT 32          /* max number of packets in an ISOC transfer */
 #define ISO_MAX_SIZE 0x8000     /* max size of one URB buffer (32 Kb) */
 
@@ -143,6 +143,7 @@ struct gspca_dev {
 
         __u8 iface;                     /* USB interface number */
         __u8 alt;                       /* USB alternate setting */
+        __u8 bulk;              /* image transfer by isoc (0) or bulk (1) */
         __u8 curr_mode;                 /* current camera mode */
         __u32 pixfmt;                   /* current mode parameters */
         __u16 width;