From c8f63d006ff5f84ad629f4c06cdc9fee34fdfe3d Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Fri, 6 Sep 2019 15:04:51 +0100 Subject: [PATCH] v4l2: Add a Greyworld AWB mode. Adds a simple greyworld white balance preset, mainly for use with cameras without an IR filter (eg Raspberry Pi NoIR) Signed-off-by: Dave Stevenson --- drivers/media/v4l2-core/v4l2-ctrls.c | 1 + include/uapi/linux/v4l2-controls.h | 1 + 2 files changed, 2 insertions(+) --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -275,6 +275,7 @@ const char * const *v4l2_ctrl_get_menu(u "Flash", "Cloudy", "Shade", + "Greyworld", NULL, }; static const char * const camera_iso_sensitivity_auto[] = { --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -815,6 +815,7 @@ enum v4l2_auto_n_preset_white_balance { V4L2_WHITE_BALANCE_FLASH = 7, V4L2_WHITE_BALANCE_CLOUDY = 8, V4L2_WHITE_BALANCE_SHADE = 9, + V4L2_WHITE_BALANCE_GREYWORLD = 10, }; #define V4L2_CID_WIDE_DYNAMIC_RANGE (V4L2_CID_CAMERA_CLASS_BASE+21)