On Tue, 2008-12-16 at 11:35 +0530, ext Trilok Soni wrote:

> OK, I found other guys (android ??) using such home brew frameworks.
> Time to write a switch framework.

To start a discussion on what such a GPIO switch framework should be
like if someone were to write it, here's a list of the kind of things
I'd like to see in it (mostly from gpio-switch.c):

* Based on or integrated in the gpiolib.

* Dynamically changeable notification callbacks in kernel.

* Sysfs notifications to userspace.

* Debouncing for the notifications to filter spurious events.

* Dynamically adjustable debounce timeouts.

* Arbitrary names for the GPIOs in sysfs instead of (or in addition to)
the gpiolib style "gpioN".

Anything else? I didn't see anything in the Android source that couldn't
be covered with this.


Jani.


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