Hi Alex,

On Wednesday 29 June 2011 13:18:10 Alex Gershgorin wrote:
> Hi Laurent,
> 
> From previous correspondence:
> 
> My video source is not the video camera and performs many other functions.
> For this purpose I have RS232 port.
> As for the video, it runs continuously and is not subject to control except
> for the power supply.
> 
> > As a quick hack, you can create an I2C driver for your video source that
> > doesn't access the device and just returns fixed format and frame size.
> > 
> > The correct fix is to implement support for platform subdevs in the V4L2
> > core.
> 
> Yes, I wrote a simple driver, now it looks like this:
> 
> [    2.029754] Linux media interface: v0.10
> [    2.034851] Linux video capture interface: v2.00
> [    2.041015] My_probe I2C subdev probed

Are you sure that's the probe method ? Isn't it the init method ?

> [    2.047058] omap3isp omap3isp: Revision 2.0 found
> [    2.052307] omap-iommu omap-iommu.0: isp: version 1.1
> [    2.069854] i2c i2c-3: Failed to register i2c client my-te at 0x21 -16)

Make sure you don't already have an I2C device at address 0x21 on the same 
bus.

> [    2.077301] isp_register_subdev_group: Unable to register subdev my-te
> 
> I see now that, subdev probed but the same problem stays.
> 
> Really I do not have a physical I2C address 0x21, he was selected for
> registration
> 
> may be a 'problem in this?

-- 
Regards,

Laurent Pinchart
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