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[media] uvcvideo: Fix reading the current exposure value of UVC
V4L2_CID_EXPOSURE_ABSOLUTE property does not return an updated value when autoexposure (V4L2_CID_EXPOSURE_AUTO) is turned on. This patch fixes this issue by adding the UVC_CTRL_FLAG_AUTO_UPDATE flag. Tested on a C920 camera. Signed-off-by: Anton V. Shokurov <shokurov.anton.v@yandex.ru> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -227,7 +227,8 @@ static struct uvc_control_info uvc_ctrls[] = {
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.size = 4,
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.flags = UVC_CTRL_FLAG_SET_CUR
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| UVC_CTRL_FLAG_GET_RANGE
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| UVC_CTRL_FLAG_RESTORE,
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| UVC_CTRL_FLAG_RESTORE
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| UVC_CTRL_FLAG_AUTO_UPDATE,
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},
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{
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.entity = UVC_GUID_UVC_CAMERA,
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