Hi Mauro,
On Thursday 05 May 2011 13:33:20 Mauro Carvalho Chehab wrote:
> Em 27-04-2011 07:38, Laurent Pinchart escreveu:
> > Hi Mauro,
> >
> > 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.
> As the other patches don't depend on this one, I'm applying the remaining
> patches, in order to save me the time of review the entire series again.
>
> > uvcvideo: Add support for V4L2_PIX_FMT_RGB565
> > uvcvideo: Add support for JMicron USB2.0 XGA WebCam
> >
> > Martin Rubli (2):
> > uvcvideo: Add UVCIOC_CTRL_QUERY ioctl
> > uvcvideo: Add driver documentation
> >
> > Documentation/feature-removal-schedule.txt | 23 ++
> > Documentation/ioctl/ioctl-number.txt | 2 +-
> > Documentation/video4linux/uvcvideo.txt | 239 ++++++++++++++++++++
> > drivers/media/video/uvc/uvc_ctrl.c | 332
> > +++++++++++++++++----------- drivers/media/video/uvc/uvc_driver.c
> > | 14 ++
> > drivers/media/video/uvc/uvc_v4l2.c | 51 ++++-
> > drivers/media/video/uvc/uvcvideo.h | 57 ++++--
> > include/linux/Kbuild | 1 +
> > include/linux/uvcvideo.h | 69 ++++++
> > 9 files changed, 625 insertions(+), 163 deletions(-)
> > create mode 100644 Documentation/video4linux/uvcvideo.txt
> > create mode 100644 include/linux/uvcvideo.h
--
Regards,
Laurent Pinchart
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