Re: uvc_driver.c compile error on 2.6.18

["Hans Verkuil" <hverkuil@xxxxxxxxx>]

> Hi Hans,
>
> On Wednesday 02 July 2008, Hans Verkuil wrote:
>> Hi all,
>>
>> The current v4l-dvb doesn't build anymore on 2.6.18:
>>
>>   CC [M]  /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.o
>> /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.c: In
>> function 'uvc_parse_control':
>> /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.c:1135: warning: implicit
>> declaration of function 'usb_endpoint_is_int_in'
>> /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.c: At top level:
>> /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.c:1918: error: unknown
>> field 'supports_autosuspend' specified in initializer
>> /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.c:1918: warning: missing
>> braces around initializer
>> /home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.c:1918: warning: (near
>> initialization for 'uvc_driver.driver.dynids')
>> make[3]: *** [/home/hans/work/src/v4l/v4l-dvb/v4l/uvc_driver.o] Error 1
>> make[2]: *** [_module_/home/hans/work/src/v4l/v4l-dvb/v4l] Error 2
>> make[2]: Leaving directory `/home/hans/work/src/kernels/linux-2.6.18.8'
>> make[1]: *** [default] Error 2
>> make[1]: Leaving directory `/home/hans/work/src/v4l/v4l-dvb/v4l'
>> make: *** [all] Error 2
>
> Mauro committed the uvcvideo driver to the v4l-dvb tree two days ago. The
> patch he based his commit on was intended for submission to the main Linux
> tree, and as such didn't contain any support for older kernels.
>
> The uvcvideo driver supports kernels 2.6.15 upwards. The code can be found
> in the SVN repository at svn://svn.berlios.de/linux-uvc/linux-uvc/trunk
>
> Fixing the driver in the hg tree to build with 2.6.18 would be duplicating
> work. As I explained in a mail to Mauro, I don't want to drop the SVN
> repository before the driver hits the main kernel tree, as it would
> confuse users.
>
> What would be the best way to solve this issue ?

I think the easiest short term solution is to figure out what the first
kernel is that allows uvcvideo to build and then adjust v4l/versions.txt
accordingly.

When the compat stuff is merged with v4l-dvb later, then v4l/versions.txt
can be adjusted again.

Regards,

      Hans

>
> Regards,
>
> Laurent Pinchart
>


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