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| author | Alain Volmat <alain.volmat@foss.st.com> | 2026-08-21 08:38:12 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil+cisco@kernel.org> | 2026-09-09 09:16:32 +0200 |
| commit | e31bd1eb17f927d067e40916abb17c4ce5f95ece (patch) | |
| tree | 6b85e0699b3a750b126f443f5e333da885bd1eca /Documentation/userspace-api/media/drivers | |
| parent | a231ed57976e32d2f9c8d93904803023a65824e9 (diff) | |
| download | linux-next-e31bd1eb17f927d067e40916abb17c4ce5f95ece.tar.gz linux-next-e31bd1eb17f927d067e40916abb17c4ce5f95ece.zip | |
media: uapi: Add controls for ST DCMIPP Driver
Add definitions and documentation for the custom control provided
by the DCMIPP driver in order to control the pixelproc gamma
correction.
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Diffstat (limited to 'Documentation/userspace-api/media/drivers')
| -rw-r--r-- | Documentation/userspace-api/media/drivers/dcmipp.rst | 14 | ||||
| -rw-r--r-- | Documentation/userspace-api/media/drivers/index.rst | 1 |
2 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/drivers/dcmipp.rst b/Documentation/userspace-api/media/drivers/dcmipp.rst new file mode 100644 index 000000000000..ed4272da4b68 --- /dev/null +++ b/Documentation/userspace-api/media/drivers/dcmipp.rst @@ -0,0 +1,14 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +ST DCMIPP driver +================ + +The ST DCMIPP driver implements a driver specific control as part of its +pixelproc subdev. + +``V4L2_CID_DCMIPP_PIXELPROC_GAMMA_CORRECTION_ENABLE (boolean)`` + Enable / disable the gamma correction block. + + The DCMIPP PixelProc stage implements a gamma compression on each R, G, B + component, using a static gamma exponent 2.2. + The gamma is implemented as a 7-segment linear curve. diff --git a/Documentation/userspace-api/media/drivers/index.rst b/Documentation/userspace-api/media/drivers/index.rst index 02967c9b18d6..8d2c489b8453 100644 --- a/Documentation/userspace-api/media/drivers/index.rst +++ b/Documentation/userspace-api/media/drivers/index.rst @@ -30,6 +30,7 @@ For more details see the file COPYING in the source distribution of Linux. camera-sensor ccs cx2341x-uapi + dcmipp dw100 imx-uapi mali-c55 |