Control DO_WHITE_BALANCE is a button, with read only and execute-on-write flags.
Adding this control in the proper list in the fill function.
After adding it here, we can see output of v4l2-ctl -L
do_white_balance 0x0098090d (button) : flags=write-only, execute-on-write
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
        case V4L2_CID_FLASH_STROBE_STOP:
        case V4L2_CID_AUTO_FOCUS_START:
        case V4L2_CID_AUTO_FOCUS_STOP:
+       case V4L2_CID_DO_WHITE_BALANCE:
                *type = V4L2_CTRL_TYPE_BUTTON;
                *flags |= V4L2_CTRL_FLAG_WRITE_ONLY |
                          V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;