kernel/linux.git/include/media/v4l2-ctrls.h, branch linux-7.0.y

media: v4l2-ctrls: Set error v4l2_ctrl_new_fwnode_properties consistently

2026-01-14T22:33:02+00:00

The vast majority of the callers of v4l2_ctrl_new_fwnode_properties() do check the returned error code but the function does not set the control handler's error on failure. This will make error handling more complicated and prone for bugs. Always assign the control handler's error field on error in v4l2_ctrl_new_fwnode_properties(). Signed-off-by: Sakari Ailus Reviewed-by: Jacopo Mondi Signed-off-by: Hans Verkuil

media: include: update Hans Verkuil's email address

2025-09-09T13:58:56+00:00

Replace hverkuil@xs4all.nl by hverkuil@kernel.org. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-core: Rename second ioctl handlers argument to 'void *priv'

2025-08-13T06:33:59+00:00

The second argument to the ioctl handlers is not a file handle any more. Rename it from 'void *fh' to 'void *priv' in the V4L2 core, to avoid misconceptions. While at it, align function arguments in include/media/v4l2-mem2mem.h. Signed-off-by: Laurent Pinchart Signed-off-by: Hans Verkuil

media: v4l2-ctrls: Return the handler's error in v4l2_ctrl_handler_free()

2025-06-30T06:47:41+00:00

v4l2_ctrl_handler_free() used to return void but changing this to int, returning the handler's error code, enables the drivers to simply return the handler's error in this common error handling pattern: if (handler->error) return v4l2_ctrl_handler_free(handler); Suggested-by: Laurent Pinchart Signed-off-by: Sakari Ailus Reviewed-by: Laurent Pinchart Reviewed-by: Hans Verkuil Signed-off-by: Hans Verkuil

media: v4l2-core: Introduce v4l2_query_ext_ctrl_to_v4l2_queryctrl

2025-03-05T09:43:26+00:00

We use this logic in a couple of places. Refactor into a function. No functional change expected from this patch. Signed-off-by: Ricardo Ribalda Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-ctrls: add support for V4L2_CTRL_WHICH_MIN/MAX_VAL

2025-03-03T17:23:35+00:00

Add the capability of retrieving the min and max values of a compound control. [Ricardo: Added static to v4l2_ctrl_type_op_(maximum|minimum) proto] [Ricardo: Fix documentation] Signed-off-by: Yunke Cao Tested-by: Yunke Cao Signed-off-by: Ricardo Ribalda Link: https://lore.kernel.org/r/20250203-uvc-roi-v17-2-5900a9fed613@chromium.org Signed-off-by: Hans de Goede Signed-off-by: Hans Verkuil [hverkuil: fix small alignment checkpatch warning]

media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT

2025-03-03T17:23:35+00:00

Add p_rect to struct v4l2_ext_control with basic support in v4l2-ctrls. Reviewed-by: Laurent Pinchart Reviewed-by: Ricardo Ribalda Reviewed-by: Sergey Senozhatsky Reviewed-by: Daniel Scally Signed-off-by: Yunke Cao Reviewed-by: Hans Verkuil Tested-by: Yunke Cao Signed-off-by: Ricardo Ribalda Link: https://lore.kernel.org/r/20250203-uvc-roi-v17-1-5900a9fed613@chromium.org Signed-off-by: Hans de Goede Signed-off-by: Hans Verkuil

media: Add AV1 uAPI

2023-06-09T15:13:01+00:00

This patch adds the AOMedia Video 1 (AV1) kernel uAPI. This design is based on currently available AV1 API implementations and aims to support the development of AV1 stateless video codecs on Linux. Signed-off-by: Daniel Almeida Co-developed-by: Nicolas Dufresne Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-ctrls: Fix doc for v4l2_ctrl_request_hdl_find

2023-03-20T15:21:47+00:00

We should call v4l2_ctrl_request_hdl_put() instead of v4l2_ctrl_request_put_hdl(). Fix the typo. Signed-off-by: Miaoqian Lin Reviewed-by: Nicolas Dufresne Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: v4l2-ctrls: drop 'elems' argument from control type ops.

2022-09-24T06:49:06+00:00

The type ops for equal, init and validate have an elems argument, but this can be taken from struct v4l2_ctrl: ctrl->elems for equal and init, and ctrl->new_elems for validate (since you are validating a new control value). So drop this argument and update all callers. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab