David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | .. Permission is granted to copy, distribute and/or modify this |
| 2 | .. document under the terms of the GNU Free Documentation License, |
| 3 | .. Version 1.1 or any later version published by the Free Software |
| 4 | .. Foundation, with no Invariant Sections, no Front-Cover Texts |
| 5 | .. and no Back-Cover Texts. A copy of the license is included at |
| 6 | .. Documentation/media/uapi/fdl-appendix.rst. |
| 7 | .. |
| 8 | .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 9 | |
| 10 | .. _v4l2-selection-flags: |
| 11 | |
| 12 | *************** |
| 13 | Selection flags |
| 14 | *************** |
| 15 | |
| 16 | .. tabularcolumns:: |p{5.2cm}|p{2.0cm}|p{6.5cm}|p{1.2cm}|p{1.6cm}| |
| 17 | |
| 18 | .. _v4l2-selection-flags-table: |
| 19 | |
| 20 | .. flat-table:: Selection flag definitions |
| 21 | :header-rows: 1 |
| 22 | :stub-columns: 0 |
| 23 | |
| 24 | * - Flag name |
| 25 | - id |
| 26 | - Definition |
| 27 | - Valid for V4L2 |
| 28 | - Valid for V4L2 subdev |
| 29 | * - ``V4L2_SEL_FLAG_GE`` |
| 30 | - (1 << 0) |
| 31 | - Suggest the driver it should choose greater or equal rectangle (in |
| 32 | size) than was requested. Albeit the driver may choose a lesser |
| 33 | size, it will only do so due to hardware limitations. Without this |
| 34 | flag (and ``V4L2_SEL_FLAG_LE``) the behaviour is to choose the |
| 35 | closest possible rectangle. |
| 36 | - Yes |
| 37 | - Yes |
| 38 | * - ``V4L2_SEL_FLAG_LE`` |
| 39 | - (1 << 1) |
| 40 | - Suggest the driver it should choose lesser or equal rectangle (in |
| 41 | size) than was requested. Albeit the driver may choose a greater |
| 42 | size, it will only do so due to hardware limitations. |
| 43 | - Yes |
| 44 | - Yes |
| 45 | * - ``V4L2_SEL_FLAG_KEEP_CONFIG`` |
| 46 | - (1 << 2) |
| 47 | - The configuration must not be propagated to any further processing |
| 48 | steps. If this flag is not given, the configuration is propagated |
| 49 | inside the subdevice to all further processing steps. |
| 50 | - No |
| 51 | - Yes |