Hi Arec, Thank you for the patch. On Tue, Mar 08, 2022 at 11:38:39AM +0800, Arec Kao wrote: > Changing the gain affects the black-level through the device; > the gain should therefore not be changed during a BLC procedure. > If the gain changes, then the BLC routine should be re-run > in some scenarios. > > Signed-off-by: Arec Kao <arec.kao@xxxxxxxxx> > --- > .../userspace-api/media/v4l/ext-ctrls-image-source.rst | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-image-source.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-image-source.rst > index 71f23f131f97..5ee53ba76d46 100644 > --- a/Documentation/userspace-api/media/v4l/ext-ctrls-image-source.rst > +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-image-source.rst > @@ -59,6 +59,11 @@ Image Source Control IDs > non-sensitive. > This control is required for automatic calibration of sensors/cameras. > > +``V4L2_CID_BLC (integer)`` > + Changing the gain affects the black-level through the device; the gain > + should therefore not be changed during a BLC procedure. If the gain > + changes, the BLC routine should be re-run in some scenarios. This doesn't tell me what the control does. > + > .. c:type:: v4l2_area > > .. flat-table:: struct v4l2_area -- Regards, Laurent Pinchart
