On Wed, Jun 20, 2012 at 10:12 PM, Julia <julia.cheung...@gmail.com> wrote:
> hi Devin,
> i don't understand what you mean when you say "analog support for the em28xx 
> is
> known to be broken on ARM right now'', I hope you can give me some advice.
>
> I use Pinnacle DVC100 capture card on cm-t3530 card to capture analog images.
> cm-t3530 uses linux 2.6.32 kernel. at first the card can be correctly detected
> and by the cm-t3530 and generated as the device file /dev/video1.
>
>
> but when I use some application to capture the images by use of v4l2,there is
> something wrong and the strace of the application shows the error message is
> "ioctl(3, VIDIOC_DQBUF, 0xbeeb4a00)      = ? ERESTARTSYS (To be restarted)". 
> The
> same application can correctly capture my usb-camera images.
>  does the problem can be solved?  I am yearning for  your advice.

Hello Julia,

Yeah, the driver is broken with analog on ARM.  I did some work for a
commercial customer (in fact, also on a Compulab board), but haven't
had a chance to clean up any of the patches and get them upstream.

It's likely the problem you are hitting can be fixed by the patch
described here:

http://www.mail-archive.com/linux-media@vger.kernel.org/msg28194.html

Devin

-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to