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[media] ov7670: implement VIDIOC_ENUM_FRAMESIZES

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GStreamer uses this.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Daniel Drake 2010-09-24 14:17:37 -03:00 committed by Mauro Carvalho Chehab
parent e99dfcf7f6
commit b0326b7f8d
1 changed files with 17 additions and 0 deletions
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17
drivers/media/video/ov7670.c
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@ -906,6 +906,22 @@ static int ov7670_enum_frameintervals(struct v4l2_subdev *sd,
return 0;
}
/*
* Frame size enumeration
*/
static int ov7670_enum_framesizes(struct v4l2_subdev *sd,
struct v4l2_frmsizeenum *fsize)
{
__u32 index = fsize->index;
if (index >= N_WIN_SIZES)
return -EINVAL;
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
fsize->discrete.width = ov7670_win_sizes[index].width;
fsize->discrete.height = ov7670_win_sizes[index].height;
return 0;
}
/*
* Code for dealing with controls.
*/
@ -1453,6 +1469,7 @@ static const struct v4l2_subdev_video_ops ov7670_video_ops = {
.s_parm = ov7670_s_parm,
.g_parm = ov7670_g_parm,
.enum_frameintervals = ov7670_enum_frameintervals,
.enum_framesizes = ov7670_enum_framesizes,
};
static const struct v4l2_subdev_ops ov7670_ops = {