Messages in this thread | | | Date | Sun, 25 Mar 2012 09:40:12 +0200 | From | Wolfram Sang <> | Subject | Re: PCA GPIO interrupt triggers |
| |
> 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 :)
Regards,
Wolfram
-- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [unhandled content-type:application/pgp-signature]
| |