linux-kernel - Re: [PATCH] input: touchscreen: use polling mode in 88pm860x

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Message-ID: <20110313064426.GG31566@core.coreip.homeip.net>
Date:	Sat, 12 Mar 2011 22:44:26 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Haojian Zhuang <haojian.zhuang@...vell.com>
Cc:	johnpol@....mipt.ru, sameo@...ux.intel.com, a.zummo@...ertech.it,
	lrg@...mlogic.co.uk, broonie@...nsource.wolfsonmicro.com,
	rpurdie@...ys.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] input: touchscreen: use polling mode in 88pm860x

On Mon, Mar 07, 2011 at 11:43:14PM +0800, Haojian Zhuang wrote:
> Measuring point on touchscreen with IRQ mode can only monitor pen-down
> event. If finger is moving on touchscreen, it can't be monitored by
> IRQ pen-down event. So switch to polling mode after pen-down event.
> 

Instead of scheduling work you could stay in the interrupt handler
(which is a separate thread) and poll from it. Or is it a nested
interrupt and it is sharing the interrupt thread?

Thanks.

-- 
Dmitry
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