Andy Walls wrote:
On Sun, 2009-05-24 at 20:52 -0400, David Ward wrote:
On 05/24/2009 07:10 PM, Matt Doran wrote:
Hi there,
I tried using the latest v4l code on an Mythtv box running 2.6.20, but
the v4l videodev module fails to load with the following warnings:
videodev: Unknown symbol i2c_unregister_device
v4l2_common: Unknown symbol v4l2_device_register_subdev
It seems the "i2c_unregister_device" function was added in 2.6.26.
References to this function in v4l2-common.c are enclosed in an ifdef
like:
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26)
However in "v4l2_device_unregister()" in v4l2-device.c, there is a
reference to "i2c_unregister_device" without any ifdefs. I am
running a pretty old kernel, but I'd guess anyone running 2.6.25 or
earlier will have this problem. It seems this code was added by
Mauro 3 weeks ago in this rev:
http://linuxtv.org/hg/v4l-dvb/rev/87afa7a4ccdf
I have been seeing the errors compiling adv7343.c and ths7303.c under
2.6.24 as well. Andy Walls and Chaithrika Subrahmanya had written
patches for those two modules respectively, but there were some comments
during the review of the patches, so I think they are still being worked on.
Well, just to manage expectations: I am not working on this. I do not
advise waiting for something from me. ;)
As an end user, you work-around is to use "make menuconfig" (or
whatever) as Matt did: disable the modules that aren't compiling on
older kernels.
I agree, but the main problem I raise is the use of
"i2c_unregister_device" in the main v4l module on Linux kernels that
don't support it.
Regards,
Matt
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
