diff options
| author | Jacopo Mondi | 2020-05-09 11:04:52 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2020-05-18 15:36:20 +0200 |
| commit | e0a360630debdf12355d9ec9f1417172c3fa6756 (patch) | |
| tree | 12e20904044d29576070e9d25a25ac0ec5d7d868 /include | |
| parent | e0837a6c08e127d8a7b765decc16abbed26589e1 (diff) | |
media: v4l2-ctrls: Add helper to register properties
Add an helper function to v4l2-ctrls to register controls associated
with a device property.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/media/v4l2-ctrls.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 224c10823bbf..f40e2cbb21d3 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -30,6 +30,7 @@ struct v4l2_ctrl; struct v4l2_ctrl_handler; struct v4l2_ctrl_helper; struct v4l2_fh; +struct v4l2_fwnode_device_properties; struct v4l2_subdev; struct v4l2_subscribed_event; struct video_device; @@ -1428,4 +1429,29 @@ int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, */ int v4l2_ctrl_subdev_log_status(struct v4l2_subdev *sd); +/** + * v4l2_ctrl_new_fwnode_properties() - Register controls for the device + * properties + * + * @hdl: pointer to &struct v4l2_ctrl_handler to register controls on + * @ctrl_ops: pointer to &struct v4l2_ctrl_ops to register controls with + * @p: pointer to &struct v4l2_fwnode_device_properties + * + * This function registers controls associated to device properties, using the + * property values contained in @p parameter, if the property has been set to + * a value. + * + * Currently the following v4l2 controls are parsed and registered: + * - V4L2_CID_CAMERA_ORIENTATION + * - V4L2_CID_CAMERA_SENSOR_ROTATION; + * + * Controls already registered by the caller with the @hdl control handler are + * not overwritten. Callers should register the controls they want to handle + * themselves before calling this function. + * + * Return: 0 on success, a negative error code on failure. + */ +int v4l2_ctrl_new_fwnode_properties(struct v4l2_ctrl_handler *hdl, + const struct v4l2_ctrl_ops *ctrl_ops, + const struct v4l2_fwnode_device_properties *p); #endif |