Re: SoC Camera driver and TV decoder

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camera 0-0: Probing 0-0
sh_mobile_ceu sh_mobile_ceu.0: SuperH Mobile CEU driver attached to camera 0
tvp5150 0-005d: chip found @ 0xba (i2c-sh_mobile)
tvp5150 0-005d: tvp5150am1 detected.
sh_mobile_ceu sh_mobile_ceu.0: SuperH Mobile CEU driver detached from camera 0

There is no error 515 but the driver is still detached.
drivers/media/video/sh_mobile_ceu_camera.c:
sh_mobile_ceu_remove_device() is called /* Called with .video_lock held */
static struct soc_camera_host_ops sh_mobile_ceu_host_ops = {
       .owner          = THIS_MODULE,
       .add            = sh_mobile_ceu_add_device,
       .remove         = sh_mobile_ceu_remove_device,
It seems sh_mobile_ceu_add_device() was failed.
I will try to explore that.

Janusz

----- Original Message ----- From: "Guennadi Liakhovetski" <g.liakhovetski@xxxxxx>
To: "Janusz Uzycki" <janusz.uzycki@xxxxxxxxxxxxxx>
Cc: <g.daniluk@xxxxxxxxxxxxxx>; "Linux Media Mailing List" <linux-media@xxxxxxxxxxxxxxx>
Sent: Tuesday, February 01, 2011 2:21 PM
Subject: Re: SoC Camera driver and TV decoder


On Tue, 1 Feb 2011, Janusz Uzycki wrote:

include/linux/errno.h:#define ENOIOCTLCMD 515 /* No ioctl command */

What did I forget below?
static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
       .s_routing = tvp5150_s_routing,

       /* SoC camera: */
       .s_stream       = tvp5150_s_stream,
       .g_mbus_fmt     = tvp5150_g_fmt,
       .s_mbus_fmt     = tvp5150_s_fmt,
       .try_mbus_fmt   = tvp5150_try_fmt,
       .enum_mbus_fmt  = tvp5150_enum_fmt,
/*      .cropcap        = tw9910_cropcap,
       .g_crop         = tw9910_g_crop,
       .s_crop         = tw9910_s_crop,*/
};

cropcap/g_crop/s_cros are necessary? why and when?

cropcap and g_crop might be necessary - at least minimal static versions.

Thanks
Guennadi


thanks
Janusz


> On Thu, 27 Jan 2011, Janusz Uzycki wrote:
>
> > Hello Guennadi again.
> >
> > I patched tvp5150.c according to tw9910 driver (without real cropping
> > support yet).
> > Unfortunately I got the messages:
> > camera 0-0: Probing 0-0
> > sh_mobile_ceu sh_mobile_ceu.0: SuperH Mobile CEU driver attached to > > camera
> > 0
> > tvp5150 0-005d: chip found @ 0xba (i2c-sh_mobile)
> > tvp5150 0-005d: tvp5150am1 detected.
>
> This looks good - i2c to the chip works!
>
> > sh_mobile_ceu sh_mobile_ceu.0: SuperH Mobile CEU driver detached from
> > camera 0
> > camera: probe of 0-0 failed with error -515
>
> This is strange, however - error code 515... Can you try to find out > where
> it is coming from?
>
> Thanks
> Guennadi
>


---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/


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