diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2009-12-09 08:40:03 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 04:53:16 -0300 |
| commit | 97548ed4c4661502cdfd1aabd5d3876fa4f5cc2e (patch) | |
| tree | c85b85954f53e3a97b6590de8d5d5396e7c43358 /include/linux/media.h | |
| parent | 1651333b09743887bc2dd3d158a11853a2be3fe7 (diff) | |
[media] media: Links setup
Create the following ioctl and implement it at the media device level to
setup links.
- MEDIA_IOC_SETUP_LINK: Modify the properties of a given link
The only property that can currently be modified is the ENABLED link
flag to enable/disable a link. Links marked with the IMMUTABLE link flag
can not be enabled or disabled.
Enabling or disabling a link has effects on entities' use count. Those
changes are automatically propagated through the graph.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/linux/media.h')
| -rw-r--r-- | include/linux/media.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/media.h b/include/linux/media.h index 17c93a413677..7c69913c0ad2 100644 --- a/include/linux/media.h +++ b/include/linux/media.h @@ -126,5 +126,6 @@ struct media_links_enum { #define MEDIA_IOC_DEVICE_INFO _IOWR('M', 1, struct media_device_info) #define MEDIA_IOC_ENUM_ENTITIES _IOWR('M', 2, struct media_entity_desc) #define MEDIA_IOC_ENUM_LINKS _IOWR('M', 3, struct media_links_enum) +#define MEDIA_IOC_SETUP_LINK _IOWR('M', 4, struct media_link_desc) #endif /* __LINUX_MEDIA_H */ |