On Tue, 27 Jan 2009, Hans Verkuil wrote:
> > [Shah, Hardik] Hi Hans,
> > I got your above point. Now regarding the enum I am not sure about how
> > to implement it. Are you suggesting me to remove the control ID for
> > rotation and implement in some other way. Please let me know if I am
> > missing something. Currently in driver I have implemented the rotation in
> > below way {
> > .id = V4L2_CID_ROTATION,
> > .name = "Rotation",
> > .minimum = 0,
> > .maximum = 270,
> > .step = 90,
> > .default_value = -1,
> > .flags = 0,
> > .type = V4L2_CTRL_TYPE_INTEGER,
> > You want me to change V4L2_CTRL_TYPE_INTEGER to some enum or something.
>
> Change it to V4L2_CTRL_TYPE_MENU. See:
> http://www.linuxtv.org/downloads/video4linux/API/V4L2_API/spec-single/v4l2.html#VIDIOC-QUERYCTRL
Thinking about it more, I think an integer control like this might make
more sense. default_value should be changed to 0 of course. Extracting
the real meaning from the control setting is more obvious for the integer
control than a menu. And what if some hardware allows for rotations other
than 90 degrees?
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