[Gumstix-users] Can I register an IRQ with any GPIO line?

[Derek N. <der...@gm...>]

Can I register an IRQ with any GPIO line?

Are there specific GPIO pins that are set up to be an IRQ that I should be
using?


I am a hardware guy so I'm not very familiar with the kernel.

I am trying to find a gpio line that I can connect to a supervisor chip that
will tell the gumstix to shutdown when the board is losing power.

I was looking at the post below, but couldn't figure out if I should be
using a specific gpio pin as an interrupt or if I can just choose any line I
want that isn't being used.

http://old.nabble.com/GPIO-IRQs-in-kernel-for-Overo-td21890338.html

Thanks for your help,

Derek