Hi Laurent On Mon, 6 Nov 2023 at 11:42, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > > On Mon, Nov 06, 2023 at 12:39:26PM +0200, Laurent Pinchart wrote: > > On Fri, Oct 20, 2023 at 06:41:45AM +0000, Ricardo Ribalda wrote: > > > Add support for the frame_sync event, so user-space can become aware > > > earlier of new frames. > > > > > > Suggested-by: Esker Wong <esker@xxxxxxxxxxxx> > > > Tested-by: Esker Wong <esker@xxxxxxxxxxxx> > > > Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> > > > --- > > > We have measured a latency of around 30msecs between frame sync > > > and dqbuf. > > > > Not surprising, especially for large resolutions. I'm curious though, > > what do you use this event for ? I think Esker is using it to get more accurate power measurements of the camera stack. > > It's easy to miss the ++ there when reading the code, would the > > following be more readable ? Actually that was my original code, but I thought you would like this better :) Thanks for the review, a v2 is on its way. > -- > Regards, > > Laurent Pinchart -- Ricardo Ribalda
