On Thu, Feb 18, 2021 at 01:06:27PM -0800, Curtis Malainey wrote:

> I am trying to understand the purpose of this delay currently, won't
> the press already be registered since we have an interrupt? Or does it need
> to stabilize? The reason is 250ms is well within human perception or even
> double tap time, which results in users possibly double tapping buttons but
> only seeing one press come through.

It's quite common to have lots of issues with debounce on jacks,
especially around insert/removal - it looks like this delay covers both
insert/removal and button presses so it may well be needed for robust
handling of the actual jack insert.