[media] gspca - pac7302/pac7311: Fix some warnings

Signed-off-by: NJean-François Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/pac7302.c

@@ -393,7 +393,7 @@ static const __u8 page3_7302[] = {
 
 static void reg_w_buf(struct gspca_dev *gspca_dev,
 		  __u8 index,
-		  const char *buffer, int len)
+		  const u8 *buffer, int len)
 {
 	int ret;
 

drivers/media/video/gspca/pac7311.c

@@ -261,7 +261,7 @@ static const __u8 page4_7311[] = {
 
 static void reg_w_buf(struct gspca_dev *gspca_dev,
 		  __u8 index,
-		  const char *buffer, int len)
+		  const u8 *buffer, int len)
 {
 	int ret;