recipes-bsp/linux/linux-omap/media/0031-v4l-subdev-Generic-ioctl-support.patch

   1 From 3378e81670a983f084f6d8e6be654234b258e482 Mon Sep 17 00:00:00 2001
   2 From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   3 Date: Fri, 26 Feb 2010 16:23:10 +0100
   4 Subject: [PATCH 31/43] v4l: subdev: Generic ioctl support
   5
   6 Instead of returning an error when receiving an ioctl call with an
   7 unsupported command, forward the call to the subdev core::ioctl handler.
   8
   9 Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  10 ---
  11  Documentation/video4linux/v4l2-framework.txt |    5 +++++
  12  drivers/media/video/v4l2-subdev.c            |    2 +-
  13  2 files changed, 6 insertions(+), 1 deletions(-)
  14
  15 diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
  16 index d0fb880..1bb5f22 100644
  17 --- a/Documentation/video4linux/v4l2-framework.txt
  18 +++ b/Documentation/video4linux/v4l2-framework.txt
  19 @@ -407,6 +407,11 @@ VIDIOC_UNSUBSCRIBE_EVENT
  20         To properly support events, the poll() file operation is also
  21         implemented.
  22
  23 +Private ioctls
  24 +
  25 +       All ioctls not in the above list are passed directly to the sub-device
  26 +       driver through the core::ioctl operation.
  27 +
  28
  29  I2C sub-device drivers
  30  ----------------------
  31 diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
  32 index e706c4c..1710a64 100644
  33 --- a/drivers/media/video/v4l2-subdev.c
  34 +++ b/drivers/media/video/v4l2-subdev.c
  35 @@ -276,7 +276,7 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
  36         }
  37  #endif
  38         default:
  39 -               return -ENOIOCTLCMD;
  40 +               return v4l2_subdev_call(sd, core, ioctl, cmd, arg);
  41         }
  42
  43         return 0;
  44 --
  45 1.6.6.1
  46