diff options
| author | Daniel Scally <djrscally@gmail.com> | 2022-03-02 22:03:03 +0000 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-04-24 07:59:09 +0100 |
| commit | 012c87f7696f3191f340d9bd6b4476d8d3bb25ad (patch) | |
| tree | 9ec2a7ed21ded95555a57d27bfe36104f33a77bf /include/media/media-entity.h | |
| parent | 9d0c23bfe7083f182194ca235156a4098aa59344 (diff) | |
media: entity: Add support for ancillary links
Add functions to create ancillary links, so that they don't need to
be manually created by users.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'include/media/media-entity.h')
| -rw-r--r-- | include/media/media-entity.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 742918962d46..1d13b8939a11 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -1121,4 +1121,23 @@ void media_remove_intf_links(struct media_interface *intf); (((entity)->ops && (entity)->ops->operation) ? \ (entity)->ops->operation((entity) , ##args) : -ENOIOCTLCMD) +/** + * media_create_ancillary_link() - create an ancillary link between two + * instances of &media_entity + * + * @primary: pointer to the primary &media_entity + * @ancillary: pointer to the ancillary &media_entity + * + * Create an ancillary link between two entities, indicating that they + * represent two connected pieces of hardware that form a single logical unit. + * A typical example is a camera lens controller being linked to the sensor that + * it is supporting. + * + * The function sets both MEDIA_LNK_FL_ENABLED and MEDIA_LNK_FL_IMMUTABLE for + * the new link. + */ +struct media_link * +media_create_ancillary_link(struct media_entity *primary, + struct media_entity *ancillary); + #endif |