Hi Laurent,
thanks for your reply.
Using a current mainline kernel is a little problematic. Recently I
compiled the 2.6.39 and it wasn't able to boot at all. The reason for
this are probably the chips, that are built on the CPU module. Usually,
a working kernel for this module was undergoing some modifications by
Technexion because of these chips.
Currently, Technexion only offers the 2.6.32. and 2.6.37 kernel. The
latter one makes a new device node /dev/media0 available (after
activating some 'experimental' marked options in the kernel config), but
I wasn't able to capture any signal.
I'm going to try the latest mainline kernel, but I doubt it will work.
Kind regards,
Andreas
Am 26.09.2012 13:41, schrieb Laurent Pinchart:
Hi Andreas,
On Thursday 06 September 2012 20:00:04 Andreas Nagel wrote:
Hello,
I am using an embedded module called TAO-3530 from Technexion, which has
an OMAP3530 processor.
This processor has a camera interface, which is part of the ISP
submodule. For an ongoing project I want to capture a video signal from
this interface. After several days of excessive research I still don't
know, how to access it.
I configured the Angstrom kernel (2.6.32), so that the driver for OMAP 3
camera controller (and all other OMAP 3 related things) is integrated,
but I don't see any new device nodes in the filesystem.
You should upgrade to a much more recent kernel, as the driver for the OMAP3
ISP included in the Angstrom 2.6.32 kernel is just bad legacy code that should
be burried in a very deep cave.
I also found some rumors, that the Media Controller Framework or driver
provides the device node /dev/media0, but I was not able to install it.
You will need to upgrade your kernel for that. I'd advise going for the latest
mainline kernel.
I use OpenEmbedded, but I don't have a recipe for Media Controller. On
the Angstrom website ( http://www.angstrom-distribution.org/repo/ )
there's actually a package called "media-ctl", but due to the missing
recipe, i can't install it. Can't say, I am an expert in OE.
Can you help me point out, what's necessary to make the camera interface
accessible?
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