From: Dmitry Torokhov <dtor@insightbb.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Mircea Bardac <dev.list@mircea.bardac.net>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: Touchpad and i8042
Date: Sun, 20 May 2007 22:35:12 -0400 [thread overview]
Message-ID: <200705202235.13742.dtor@insightbb.com> (raw)
In-Reply-To: <20070519154220.GA14506@srcf.ucam.org>
On Saturday 19 May 2007 11:42, Matthew Garrett wrote:
> On Sat, May 19, 2007 at 06:28:08PM +0300, Mircea Bardac wrote:
>
> > I've noticed a weird behaviour when monitoring roughly the number of
> > interrupts fired. The number of interrupts for "i8042" increase dramatically
> > when I move the pointer using the touchpad.
>
> The touchpad is attached to an i8042. When you touch it, it sends data
> and generates interrupts. That's perfectly normal.
Yep. With Synaptics touchpad that by default has 80 pps @ 6 bytes per
packet you should be getting ~480 interrupts per second.
--
Dmitry
prev parent reply other threads:[~2007-05-21 2:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-19 15:28 Touchpad and i8042 Mircea Bardac
2007-05-19 15:42 ` Matthew Garrett
2007-05-21 2:35 ` Dmitry Torokhov [this message]
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