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[62.243.86.95]) by smtp.gmail.com with ESMTPSA id v4sm3525254ljj.104.2020.04.14.13.02.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Apr 2020 13:02:16 -0700 (PDT) From: Daniel Gomez To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl, linux-media@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Daniel Gomez Subject: [RFC PATCH 1/3] media: v4l2-subdev.h: Add min and max enum Date: Tue, 14 Apr 2020 22:01:49 +0200 Message-Id: <20200414200151.80089-2-daniel@qtec.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200414200151.80089-1-daniel@qtec.com> References: <20200414200151.80089-1-daniel@qtec.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add min and max structures to the v4l2-subdev callback in order to allow the subdev to return a range of valid frame intervals. This would operate similar to the struct v4l2_subdev_frame_size_enum and its max and min values for the width and the height. In this case, the possibility to return a frame interval range is added to the v4l2-subdev level whenever the v4l2 device operates in step-wise or continuous mode. Signed-off-by: Daniel Gomez --- include/uapi/linux/v4l2-subdev.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h index 03970ce30741..ee15393c58cd 100644 --- a/include/uapi/linux/v4l2-subdev.h +++ b/include/uapi/linux/v4l2-subdev.h @@ -117,6 +117,8 @@ struct v4l2_subdev_frame_interval { * @code: format code (MEDIA_BUS_FMT_ definitions) * @width: frame width in pixels * @height: frame height in pixels + * @min_interval: min frame interval in seconds + * @max_interval: max frame interval in seconds * @interval: frame interval in seconds * @which: format type (from enum v4l2_subdev_format_whence) */ @@ -126,9 +128,11 @@ struct v4l2_subdev_frame_interval_enum { __u32 code; __u32 width; __u32 height; + struct v4l2_fract min_interval; + struct v4l2_fract max_interval; struct v4l2_fract interval; __u32 which; - __u32 reserved[8]; + __u32 reserved[4]; }; /** -- 2.25.1