kern/150517: [acpi] acpi_ec does not work properly on Lenovo S10[e] (due to dynamic switching to polled mode)

David Naylor naylor.b.david at gmail.com
Sat Oct 2 06:40:04 UTC 2010


The following reply was made to PR kern/150517; it has been noted by GNATS.

From: David Naylor <naylor.b.david at gmail.com>
To: Andriy Gapon <avg at icyb.net.ua>
Cc: bug-followup at freebsd.org
Subject: Re: kern/150517: [acpi] acpi_ec does not work properly on Lenovo S10[e] (due to dynamic switching to polled mode)
Date: Sat, 2 Oct 2010 08:31:17 +0200

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 On Monday 27 September 2010 07:53:51 Andriy Gapon wrote:
 > Since you already looked at the linux code, could you please post a link =
 to
 > a place where the problematic condition is handled there?
 >=20
 > P.S. A service like http://lxr.linux.no/ or similar might be convenient.
 
 Sorry for the slow reply.  Your email was mistaken as spam.  I've told gmai=
 l=20
 to behave. =20
 
 It has been a long time since I looked at the code.  The function in questi=
 on=20
 is http://lxr.linux.no/linux+v2.6.35.7/drivers/acpi/ec.c#L217 with the actu=
 al=20
 check for controller reset at L238. =20
 
 Of note is the delay at L254.  It looks like it is almost the same thing my=
 =20
 patch does, except it waits before whereas my patch waits after. =20
 
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