On Wed, 2 Jun 2010 18:06:14 +1000 Neil Brown <[email protected]> wrote: > I cannot imagine why it would take multiple seconds to scan a keypad. > Can you explain that? > > Do you mean while keys are held pressed? Maybe you don't get a wake-up event > on key-release? In that case your user-space daemon could block suspend > while there are any pressed keys.... confused.
IIRC, the device sends interrupts only for first key-down and last key-up. To detect simultaneous key-presses you must actively scan it after the first key-down. > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
