On Wed, 2 Jun 2010 10:50:39 +0200 Florian Mickler <flor...@mickler.org> wrote:
> On Wed, 2 Jun 2010 18:06:14 +1000 > Neil Brown <ne...@suse.de> 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. That makes sense - thanks. Presumably the first key-press gets to user-space promptly, so the user-space suspend daemon can be told not to suspend until the last key-up. Thanks, NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
