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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-09-06 10:59:08 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-01-11 12:19:01 -0200 |
| commit | d87cdb884486bfa795be99c83a5b3ac4d428ca84 (patch) | |
| tree | 40f87b39589940f201c2a10e265f24c05e1459ff | |
| parent | 0e576b76f5470a2f8b2287958a2b9a3dd0f56f10 (diff) | |
| download | lwn-d87cdb884486bfa795be99c83a5b3ac4d428ca84.tar.gz lwn-d87cdb884486bfa795be99c83a5b3ac4d428ca84.zip | |
[media] media-device: export the entity function via new ioctl
Now that entities have a main function, expose it via
MEDIA_IOC_G_TOPOLOGY ioctl.
Please notice that some entities may have secundary functions.
Such use case will be addressed later, when we add support for the
Media Controller properties.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/media/media-device.c | 1 | ||||
| -rw-r--r-- | include/uapi/linux/media.h | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c index 4f8388423edc..83525ac29328 100644 --- a/drivers/media/media-device.c +++ b/drivers/media/media-device.c @@ -263,6 +263,7 @@ static long __media_device_get_topology(struct media_device *mdev, /* Copy fields to userspace struct if not error */ memset(&uentity, 0, sizeof(uentity)); uentity.id = entity->graph_obj.id; + uentity.function = entity->function; strncpy(uentity.name, entity->name, sizeof(uentity.name)); diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h index f9520225a211..290dd5585dc8 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -276,7 +276,8 @@ struct media_links_enum { struct media_v2_entity { __u32 id; char name[64]; /* FIXME: move to a property? (RFC says so) */ - __u16 reserved[14]; + __u32 function; /* Main function of the entity */ + __u16 reserved[12]; }; /* Should match the specific fields at media_intf_devnode */ |