[ATrpms-users] Compro VideoMate S350

[John Pilkington]

On 19/03/11 23:21, Ken Smith wrote:
>
>
> John Pilkington wrote:
>> On 18/03/11 15:50, Ken Smith wrote:
>>>
>>> {snip}
>>>
>>> I'm trying to get a Compro VideoMate S350 card to work in a 32bit Centos
>>> 5.5 system that also has a Hauppauge WinTV-NOVA-T-500 that uses the
>>> dvb-usb-dib0700.ko kernel module as its driver. The Nova-T appears to be
>>> working.
>>>
>
>>> {snip}
>
>>>
>>> I know that the centos.plus distribution includes some (if not all of)
>>> the v4l modules, so I tried the package with the plain Centos kernel
>>> build, as I read about module conflicts on various web pages and lists.
>>> The Nova T runs fine, but I still get the error:-
>>>
>>> insmod
>>> /lib/modules/2.6.18-194.32.1.el5/kernel/drivers/media/video/video-buf.ko
>>> WARNING: Error inserting video_buf
>>> (/lib/modules/2.6.18-194.32.1.el5/kernel/drivers/media/video/video-buf.ko):
>>>
>>> Invalid module format
>>>
>> This looks reminiscent of the longstanding module-init-tools problem:
>> you probably need to find an earlier version. It's been covered
>> several times in this list, most recently here:
>>
>> http://www.gossamer-threads.com/lists/atrpms/users/15104#15104
>>
>> I see the duplicate symbol message too but the system still works.
>>
> {snip}
>
> Thanks for this info. I have been doing some digging and it appears that
> both modules
>
> /lib/modules/2.6.18-194.32.1.el5/kernel/drivers/media/video/video-buf.ko
> and
> /lib/modules/2.6.18-194.32.1.el5/updates/drivers/media/video/videobuf-core.ko
>
>
>
> export the same symbol
>
> nm
> /lib/modules/2.6.18-194.32.1.el5/kernel/drivers/media/video/video-buf.ko
> | grep videobuf_mmap_mapper
> 00000565 T videobuf_mmap_mapper
>
> and
>
> nm
> /lib/modules/2.6.18-194.32.1.el5/updates/drivers/media/video/videobuf-core.ko
> | grep videobuf_mmap_mapper
> 000002ac T videobuf_mmap_mapper
>
> Which makes insmod puke
>
> The former comes with the Kernel and the latter with V4L
>
> I'll checkout your module-init-tools suggestion.
>
> Thanks
>
> Ken
>
I haven't experimented with my el5 box recently because the facilities I 
have wanted to use have Just Worked with the older version of 
module-init-tools, but before Paulo recommended that solution I was told 
to rename the video-buf.ko module so that it wouldn't be loaded. ISTR 
that that worked too, with 2.6.18-53.1.13, but of course the effect may 
depend on the hardware involved, and the v4l/kernel relationship has 
probably changed too.

John P