Hi Stanimir, On Mon, 30 Jan 2017, Stanimir Varbanov wrote: > Hi Guennadi, > > On 01/11/2017 11:42 AM, Guennadi Liakhovetski wrote: [snip] > > In any case, _if_ we do keep the current approach of separate /dev/video* > > nodes, we need a way to associate video and metadata nodes. Earlier I > > proposed using media controller links for that. In your implementation of > > I don't think that media controller links is a good idea. This metadata > api could be used by mem2mem drivers which don't have media controller > links so we will need a generic v4l2 way to bound image buffer and its > metadata buffer. Is there anything, that's preventing mem2mem drivers from using the MC API? Arguably, if you need metadata, you cross the line of becoming a complex enough device to deserve MC support? Thanks Guennadi > -- > regards, > Stan > -- 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