V4L/DVB (7665): videodev: Add default vidioc handler

Added default vidioc handler for other private ioctls
Signed-off-by: NDouglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/videodev.c

@@ -1861,6 +1861,13 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
 			dbgarg (cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision);
 		break;
 	}
+	default:
+	{
+		if (!vfd->vidioc_default)
+			break;
+		ret = vfd->vidioc_default(file, fh, cmd, arg);
+		break;
+	}
 	} /* switch */
 
 	if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) {

include/media/v4l2-dev.h

@@ -318,6 +318,10 @@ struct video_device
 	int (*vidioc_g_chip_ident)     (struct file *file, void *fh,
 					struct v4l2_chip_ident *chip);
 
+	/* For other private ioctls */
+	int (*vidioc_default)	       (struct file *file, void *fh,
+					int cmd, void *arg);
+
 
 #ifdef OBSOLETE_OWNER /* to be removed soon */
 /* obsolete -- fops->owner is used instead */