On 06/20/18 21:44, Ezequiel Garcia wrote: > As discussed on IRC, memory-to-memory need to be modeled > properly in order to be supported by the media controller > framework, and thus to support the Request API. > > The topology looks like this: > > Device topology > - entity 1: source (1 pad, 1 link) > type Node subtype V4L flags 0 > pad0: Source > <- "proc":0 [ENABLED,IMMUTABLE] > > - entity 3: proc (2 pads, 2 links) > type Node subtype Unknown flags 0 > pad0: Source > -> "source":0 [ENABLED,IMMUTABLE] > pad1: Sink > <- "sink":0 [ENABLED,IMMUTABLE] > > - entity 6: sink (1 pad, 1 link) > type Node subtype V4L flags 0 > pad0: Sink > -> "proc":1 [ENABLED,IMMUTABLE] > > The first commit introduces a register/unregister API, > that creates/destroys all the entities and pads needed, > and links them. Can you add the output of v4l2-compliance -m /dev/mediaX here as well? Thanks! Hans > > The second commit uses this API to support the vim2m driver. > > Ezequiel Garcia (1): > media: add helpers for memory-to-memory media controller > > Hans Verkuil (1): > vim2m: add media device > > drivers/media/platform/vim2m.c | 41 +++++- > drivers/media/v4l2-core/v4l2-dev.c | 13 +- > drivers/media/v4l2-core/v4l2-mem2mem.c | 176 +++++++++++++++++++++++++ > include/media/v4l2-mem2mem.h | 5 + > include/uapi/linux/media.h | 3 + > 5 files changed, 229 insertions(+), 9 deletions(-) >
