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authorBenjamin Mugnier <benjamin.mugnier@foss.st.com>2022-10-11 14:30:29 +0200
committerSakari Ailus <sakari.ailus@linux.intel.com>2022-10-25 14:38:32 +0300
commit2378be892b6ff53659a81b703c9c3fe4ead5a6d7 (patch)
tree301911656418c2e5bbce8911ab24dee73cab7613 /Documentation/userspace-api
parent38d07a960f9bba5ba362036187f5a4eda385146c (diff)
media: Documentation: Add ST VGXY61 driver documentation
Document V4L2_CID_HDR_MODE possible values for this sensor. Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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+.. SPDX-License-Identifier: GPL-2.0
+
+ST VGXY61 camera sensor driver
+==============================
+
+The ST VGXY61 driver implements the following controls:
+
+``V4L2_CID_HDR_SENSOR_MODE``
+-------------------------------
+ Change the sensor HDR mode. A HDR picture is obtained by merging two captures of the same scene
+ using two different exposure periods.
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 4
+
+ * - HDR linearize
+ - The merger outputs a long exposure capture as long as it is not saturated.
+ * - HDR substraction
+ - This involves subtracting the short exposure frame from the long exposure frame.
+ * - "No HDR"
+ - This mode is used for standard dynamic range (SDR) exposures.