Hi Laurent, On Thu, 12 May 2016, Laurent Pinchart wrote: > The HGO is a Histogram Generator One-Dimension. It computes per-channel > histograms over a configurable region of the image with optional > subsampling. > > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> [snip] Do I understand this correctly, that with this if such a metadata device is opened, while no video data is streaming, all calls will succeed, but no buffers will be dequeued, i.e. the user-space application will hang in DQBUF or poll() / select() indefinitely? Thanks Guennadi
