Re: PCA GPIO interrupt triggers

From: Wolfram Sang
Date: Sun Mar 25 2012 - 03:40:28 EST

> I'm using a GPIO chip (PCA9554) for a matrix-keypad. The keypad
> driver itself needs interrupts for both rising and falling edges.
> The PCA driver (gpio-pca953x.c) doesn't support it, but I don't
> understand why.

? I fail to see why having EDGE_FALLING together with EDGE_RISING is not
supported. Are you sure you didn't use some other IRQ_TYPE here?

> I think, this patch should work:

Think? Can't you test it :)



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