Hi,
when you try to set a format in the pipeline, the sensor gets asked if
he can support this solution.
static int xxx_get_format(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt format;
format.code = V4L2_MBUS_FMT_SGRBG10_1X10;
format.width = MT9P031_MAX_WIDTH;
format.height = MT9P031_MAX_HEIGHT;
format.field = V4L2_FIELD_NONE;
format.colorspace = V4L2_COLORSPACE_SRGB;
fmt->format = format;
}
This is a simplified version of what you might need. Look the
mechanisms up in other code samples.
The function must be registered in
static struct v4l2_subdev_pad_ops framix_subdev_pad_ops = {
.enum_mbus_code = mt9t001_enum_mbus_code,
.enum_frame_size = mt9t001_enum_frame_size,
.get_fmt = xxx_get_format, <========================
.set_fmt = mt9t001_set_format,
.get_crop = mt9t001_get_crop,
.set_crop = mt9t001_set_crop,
};
cheers,
Bastian
2011/2/28 Loïc Akue <akue.loic@xxxxxxxxx>:
> Hi,
>
> Thank you for your reply,
>
> I finally solved my problem. My saa7113 driver code wasn't fully adapted to
> work with the new media framework.
> I tried to use the media-ctl and yavta programs for testing. Here are my
> logs :
>
> ************************************************************************************
> ./media-ctl -r -l '"saa7115 3-0024":0->"OMAP3 ISP CCDC":0[1], "OMAP3 ISP
> CCDC":1->"OMAP3 ISP CCDC output":0[1]'
> Resetting all links to inactive
> Setting up link 16:0 -> 5:0 [1]
> Setting up link 5:1 -> 6:0 [1]
>
> root@cm-t35:~# ./media-ctl -f '"saa7115 3-0024":0[UYVY 720x480], "OMAP3 ISP
> CCDC":2[UYVY 720x480]'
> Setting up format UYVY 720x480 on pad saa7115 3-0024/0
> Unable to set format: Invalid argument (-22)
>
> ************************************************************************************
> Could it be due to a lack of information provided by my saa7113 driver, or
> is it due to a bad understanding of the media-ctl app.
>
> Regards
>
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