Re: [PATCH 1/5] gpiolib: introduce set_debounce method

From: David Brownell
Date: Fri May 21 2010 - 09:23:17 EST

> > Not all GPIOs have hardware debounce though, so
> offering this
> > capability sort of begs the question of where/how to
> provide a software debounce mechanism too...
> how about adding a flag for supported features and if that
> hardware doesn't support we simply return,

Presense of a debounce method would suffice when gpiolib is
in use (vs direct implementation of the API provided by gpiolib).

> or fallback to
> software emulation if chosen by the user.

ISTR that if you look back to the original discussion about
GPIO debouncing, you will find such a software implementation;
and maybe such an integration ...

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