Hi Mauro,
On Thursday 05 May 2011 14:17:39 Mauro Carvalho Chehab wrote:
> Em 05-05-2011 08:40, Laurent Pinchart escreveu:
> > On Thursday 05 May 2011 13:33:20 Mauro Carvalho Chehab wrote:
> >> Em 27-04-2011 07:38, Laurent Pinchart escreveu:
> >>> These patches move the uvcvideo.h header file from
> >>> drivers/media/video/uvc to include/linux, making the UVC API public.
> >>> Support for the old API is kept and will be removed in 2.6.42.
> >>>
> >>> The following changes since commit
> >
> > a4761a092fd3b6bf8b5f9cfe361670c86cdcc8ca:
> >>> [media] tm6000: fix vbuf may be used uninitialized (2011-04-19
> >>> 21:13:59 -0300)
> >>>
> >>> are available in the git repository at:
> >>> git://linuxtv.org/pinchartl/uvcvideo.git uvcvideo-next
> >>>
> >>> Laurent Pinchart (5):
> >>> uvcvideo: Deprecate UVCIOC_CTRL_{ADD,MAP_OLD,GET,SET}
> >>> uvcvideo: Rename UVC_CONTROL_* flags to UVC_CTRL_FLAG_*
> >>> uvcvideo: Make the API public
> >>
> >> Why are you declaring this twice:
> >>
> >> Index: patchwork/drivers/media/video/uvc/uvcvideo.h
> >>
> >> ...
> >>
> >> +#ifndef __KERNEL__
> >> #define UVCIOC_CTRL_ADD _IOW('U', 1, struct uvc_xu_control_info)
> >> #define UVCIOC_CTRL_MAP_OLD _IOWR('U', 2, struct
> >> uvc_xu_control_mapping_old) #define UVCIOC_CTRL_MAP _IOWR('U', 2,
> >> struct uvc_xu_control_mapping) #define UVCIOC_CTRL_GET _IOWR('U',
> >> 3, struct uvc_xu_control) #define UVCIOC_CTRL_SET _IOW('U', 4,
> >> struct uvc_xu_control) -#define UVCIOC_CTRL_QUERY _IOWR('U', 5,
> >> struct uvc_xu_control_query) +#else
> >> +#define __UVCIOC_CTRL_ADD _IOW('U', 1, struct uvc_xu_control_info)
> >> +#define __UVCIOC_CTRL_MAP_OLD _IOWR('U', 2, struct
> >
> > uvc_xu_control_mapping_old)
> >
> >> +#define __UVCIOC_CTRL_MAP _IOWR('U', 2, struct
> >> uvc_xu_control_mapping) +#define __UVCIOC_CTRL_GET _IOWR('U', 3,
> >> struct uvc_xu_control) +#define __UVCIOC_CTRL_SET _IOW('U', 4, struct
> >> uvc_xu_control) +#endif
> >
> > For compatibility with existing applications. Applications should now
> > include linux/uvcvideo.h instead of drivers/media/video/uvc/uvcvideo.h,
> > but existing applications include the later. I want to make sure they
> > will still compile. A warning will be printed, and this will be removed
> > in 2.6.42.
> >
> >> You shouldn't need to do that. In fact, the better would be to have two
> >> separate headers: one with just the public API under include/linux, and
> >> another with the extra uvc-internal bits, as we did in the past with
> >> videobuf2.h.
> >
> > That's how linux/uvcvideo.h and drivers/media/video/uvc/uvcvideo.h are
> > partitioned by this patch set, except that the private header still
> > contains userspace API to avoid breaking applications during the
> > transition period.
>
> Ok, so I'm understanding that, on 2.6.42, you'll be removing the checks for
> __KERNEL__ from uvcvideo.h, right?
Yes, and I will remove all ioctl definitions from the private header.
--
Regards,
Laurent Pinchart
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