Hi Laurent, Le lundi 20 mars 2023 à 01:33 +0200, Laurent Pinchart a écrit : > > The typical usage is that applications allocate N buffers with the > > VIDIOC_REQBUFS ioctl, and in most cases that's all they use. > > Note that once we get DELETE_BUF (or DELETE_BUFS) support I'd like to > encourage applications to use the new API, and deprecate REQBUFS > (dropping it isn't on my radar, as it would take forever before no > userspace uses it anymore). I was wondering if you can extend on this. I'm worried the count semantic might prevent emulating it over create_bufs() ops, but if that works, did you meant to emulate it so driver no longer have to implement reqbufs() if they have create_bufs() ? Nicolas