This patch set implements UVC v1.5 region of interest using V4L2 control API. ROI control is consisted two uvc specific controls. 1. A rectangle control with a newly added type V4L2_CTRL_TYPE_RECT. 2. An auto control with type bitmask. V4L2_CTRL_WHICH_MIN/MAX_VAL is added to support the rectangle control. Tested on two different usb cameras using v4l2-ctl and calling ioctls. Changelog since v3: - Reordered/sliced the patches. 1. Add rect type. 2. Add min/max. 3. Add the roi controls (including init to default). 4. Document the roi controls. - Define the roi controls as uvc-specific in uvcvideo.h. - Modified documentation. - Removed the vivid change. Given the controls are now uvc-specific. I'm not sure how valuable it is to add it in vivid. Let me know otherwise. Yunke Cao (4): media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT media: v4l2_ctrl: Add V4L2_CTRL_WHICH_MIN/MAX_VAL media: uvcvideo: implement UVC v1.5 ROI media: uvcvideo: document UVC v1.5 ROI .../userspace-api/media/drivers/uvcvideo.rst | 60 +++++ .../media/v4l/vidioc-g-ext-ctrls.rst | 12 +- .../media/videodev2.h.rst.exceptions | 3 + drivers/media/i2c/imx214.c | 4 +- drivers/media/usb/uvc/uvc_ctrl.c | 214 ++++++++++++++++-- drivers/media/usb/uvc/uvc_v4l2.c | 12 +- drivers/media/usb/uvc/uvcvideo.h | 10 +- drivers/media/v4l2-core/v4l2-ctrls-api.c | 51 ++++- drivers/media/v4l2-core/v4l2-ctrls-core.c | 155 ++++++++++++- drivers/media/v4l2-core/v4l2-ioctl.c | 4 +- include/media/v4l2-ctrls.h | 32 ++- include/uapi/linux/usb/video.h | 1 + include/uapi/linux/uvcvideo.h | 13 ++ include/uapi/linux/v4l2-controls.h | 8 + include/uapi/linux/videodev2.h | 4 + 15 files changed, 531 insertions(+), 52 deletions(-) -- 2.36.1.124.g0e6072fb45-goog
