On Sun August 5 2012 19:11:19 Federico Vaga wrote:
> Hi Hans,
>
> > Did you run the latest v4l2-compliance tool from the v4l-utils.git
> > repository over your driver? I'm sure you didn't since VIP is missing
> > support for control events and v4l2-compliance would certainly
> > complain about that.
> >
> > Always check with v4l2-compliance whenever you make changes! It's
> > continuously improved as well, so a periodic check wouldn't hurt.
>
> I applied all your suggestions, and some extra simplification; now I'm
> running v4l2-compliance but I have this error:
>
>
> Allow for multiple opens:
> test second video open: OK
> test VIDIOC_QUERYCAP: OK
> fail: v4l2-compliance.cpp(322): doioctl(node,
> VIDIOC_G_PRIORITY, &prio)
> test VIDIOC_G/S_PRIORITY: FAIL
>
>
> which I don't undestand. I don't have vidio_{g|s}_priority functions in
> my implementation. And I'm using the V4L2_FL_USE_FH_PRIO flag as
> suggested in the documentation:
>
> ---------------
> - flags: optional. Set to V4L2_FL_USE_FH_PRIO if you want to let the
> framework handle the VIDIOC_G/S_PRIORITY ioctls. This requires that you
> use struct v4l2_fh.
^^^^^^^^^^^^^^^^^^
Are you using struct v4l2_fh? The version you posted didn't. You need this
anyway to implement control events.
Regards,
Hans
> Eventually this flag will disappear once all drivers
> use the core priority handling. But for now it has to be set explicitly.
> --------------
>
>
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