Hi Mark, Pierre-Louis Sorry for my late response. (It was PC replace week) >> When the hw_ptr is updated, the avail/delay value are also modified. > >> see the diagram in >> https://www.kernel.org/doc/html/latest/sound/designs/timestamping.html >> ?highlight=pcm%20timestamping > >> I would think it's more accurate to update the delay information while >> dealing with the hw_ptr update, no? > > Morimoto-san? I think your opinion is very correct. But this patch-set is for "cleanup/refactoring", and your opinion is for "add new feature", I think. # I'm not familiar with detail of delay... Best regards --- Kuninori Morimoto