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| author | Daniel Scally <dan.scally@ideasonboard.com> | 2023-02-02 14:41:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-06 15:46:43 +0300 |
| commit | f5e7bdd34aca0ed92a2bef913151dd234e86cb33 (patch) | |
| tree | 678dcded7a114985566640cac97661b75ec5aa4f /Documentation/ABI/testing/configfs-usb-gadget-uvc | |
| parent | 58f227871f798825ba44d149d578e8ffbd0d3d6d (diff) | |
| download | linux-f5e7bdd34aca0ed92a2bef913151dd234e86cb33.tar.xz | |
usb: gadget: uvc: Allow creating new color matching descriptors
Allow users to create new color matching descriptors in addition to
the default one. These must be associated with a UVC format in order
to be transmitted to the host, which is achieved by symlinking from
the format to the newly created color matching descriptor - extend
the uncompressed and mjpeg formats to support that linking operation.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Link: https://lore.kernel.org/r/20230202114142.300858-7-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/configfs-usb-gadget-uvc')
| -rw-r--r-- | Documentation/ABI/testing/configfs-usb-gadget-uvc | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc index ef3b8b852cd2..fec205044c87 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uvc +++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc @@ -179,6 +179,23 @@ Description: Default color matching descriptors white ======================== ====================================== +What: /config/usb-gadget/gadget/functions/uvc.name/streaming/color_matching/name +Date: Dec 2022 +KernelVersion: 6.3 +Description: Additional color matching descriptors + + All attributes read/write: + + ======================== ====================================== + bMatrixCoefficients matrix used to compute luma and + chroma values from the color primaries + bTransferCharacteristics optoelectronic transfer + characteristic of the source picture, + also called the gamma function + bColorPrimaries color primaries and the reference + white + ======================== ====================================== + What: /config/usb-gadget/gadget/functions/uvc.name/streaming/mjpeg Date: Dec 2014 KernelVersion: 4.0 |