On Sun, Oct 23, 2016 at 2:53 AM, Jonathan Cameron <jic23@xxxxxxxxxx> wrote: > On 19/10/16 18:13, Matt Ranostay wrote: >> Jonathan et all, >> >> Know this has been brought up in the past but what is the view of >> multipixel infrared thermopiles? >> >> Initially I plan to do summing average of all the pixels and report >> that back, but would like in the future to be able to push the pixel >> data to the buffers. >> >> These of course are weird because they barely fit into iio, but nor do >> they fit into v4l2 (especially since the data isn't DMA'able). > DMA isn't really a requirement for v4l2. > > Usual rule of thumb that if no one else thinks it's in their scope and > it measures something it goes in IIO :) > > So real question is do the v4l2 people think it should be in there? > > My gut feeling is yes. These things are only going to get bigger as the > technology moves on so will become more and more camera like. > > It's possible we'll ultimately end up bridging one way or the other > between IIO and v4l2 but only once we have a clean use case for it > and I'm not convinced this is one yet... > > Though maybe it is if exporting the average of pixels is actually how > these devices are typically used... > Seem likely we need to have a v4l2 interface... esp for the that FLIR module awhile back... (seems people made a module that was a USB class device to avoid this :)) Only issue is that there are temperature trip points that can be set which don't translate to v4l2... And v4l2 is more DMA buffer driven but I guess a polling driver was going to happen at some point... > J >> >> Datasheet -> https://eewiki.net/download/attachments/13599167/Grid-EYE%20SPECIFICATIONS%28Reference%29.pdf >> >> Thanks, >> >> Matt >> > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
