From: Romit Dasgupta <romit@ti.com>
To: "Premi, Sanjeev" <premi@ti.com>
Cc: "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: omap3evm: touchscreen delays on pm branch
Date: Fri, 27 Nov 2009 14:09:33 +0530 [thread overview]
Message-ID: <4B0F9045.6030404@ti.com> (raw)
In-Reply-To: <B85A65D85D7EB246BE421B3FB0FBB59301DE72D63F@dbde02.ent.ti.com>
Premi, Sanjeev wrote:
> Hi,
>
> I am finding the response of touchscreen on the omap3evm very slow.
>
> Here is my test:
> On console, I run : watch -n2 "cat /proc/interrupts"
> Then, I tap the touchscreen approximately once per second. However,
> (usually) no interrupts are registered. As I increase the frequency
> of 'taps' more and more interrupts are registered. But still not
> matching exact taps.
>
> However, when I keep the cpu busy with "cat /dev/zero > /dev/null &"
> each tap is recognized.
>
Do you see this even if we don't enable OFF?
next prev parent reply other threads:[~2009-11-27 8:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 17:02 omap3evm: touchscreen delays on pm branch Premi, Sanjeev
2009-11-27 6:05 ` Hemanth V
2009-11-27 8:39 ` Romit Dasgupta [this message]
2009-11-27 8:41 ` Premi, Sanjeev
2009-11-27 9:07 ` Romit Dasgupta
2009-11-27 9:50 ` Premi, Sanjeev
2009-11-27 10:24 ` Romit Dasgupta
2009-11-27 10:34 ` Hemanth V
2009-12-01 10:06 ` Sriram V
2009-12-01 16:05 ` Premi, Sanjeev
2009-12-02 5:11 ` Romit Dasgupta
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