From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Tai-hwa Liang <avatar@sentelic.com>
Cc: os@ohmu.fi, dtor@mail.ru, linux-input@vger.kernel.org
Subject: Re: [PATCH] input: Force Sentelic reconnect when mode setting has failed
Date: Mon, 21 May 2012 16:28:51 +0100 [thread overview]
Message-ID: <20120521152851.GA3552@srcf.ucam.org> (raw)
In-Reply-To: <12052123215711.9614@cnaqrzbavhz.fragryvp.pbz>
On Mon, May 21, 2012 at 11:22:07PM +0800, Tai-hwa Liang wrote:
> On Sat, 19 May 2012, Matthew Garrett wrote:
> >The Sentelic touchpad in an Asus UX-21 failed to work since the native
> >driver was merged. Examination showed that the FSP_REG_SWC1 register had
> >reverted back to 0x80 and so the pad was sending normal packets despite
> >the driver expecting absolute ones.
>
> Sounds to me that the hardware was reset, which usually happens if
> there's intermittent power failure events. Is there any particular step
> to reproduce this unexpected resetting?
None that I've identified. It only seems to do it once, and afterwards
it's fine. I agree that this seems to be covering up some more insidious
bug, but I spent most of Friday and Saturday failing to find one.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2012-05-21 15:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-19 22:56 [PATCH] input: Force Sentelic reconnect when mode setting has failed Matthew Garrett
2012-05-21 15:22 ` Tai-hwa Liang
2012-05-21 15:28 ` Matthew Garrett [this message]
2012-05-22 3:42 ` Tai-hwa Liang
2012-05-22 20:28 ` Matthew Garrett
2012-05-23 17:22 ` Tai-hwa Liang
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