Hi Jacek, On Fri, Oct 17, 2014 at 04:54:40PM +0200, Jacek Anaszewski wrote: ... > +/* > + * struct media_entity - media device entity data > + * @id: media entity id within media controller > + * @name: media entity name > + * @node_name: media entity related device node name > + * @pads: array of media_entity pads > + * @num_pads: number of elements in the pads array > + * @links: array of media_entity links > + * @num_links: number of elements in the links array > + * @subdev_fmt: related sub-device format > + * @fd: related sub-device node file descriptor > + * @src_pad_id: source pad id when entity is linked > + * @sink_pad_id: sink pad id when entity is linked > + * @next: pointer to the next data structure in the list > + */ > +struct media_entity { > + int id; > + char name[32]; > + char node_name[32]; > + struct media_pad_desc *pads; > + int num_pads; > + struct media_link_desc *links; > + int num_links; > + struct v4l2_subdev_format subdev_fmt; > + int fd; > + int src_pad_id; > + int sink_pad_id; > + struct media_entity *next; > +}; Could you use libmediactl and libv4l2subdev instead here as well? They do actually implement much of what you do here. Feel free to comment on the API. The libraries have a little bit different background than this one. Obviously there's functionality in this library what's not in the two; some of this might belong to either of the two libraries. I think we'll need V4L2 sub-device related information stored next to the media entities as well, so that's something to be added. -- Kind regards, Sakari Ailus e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html