From: Seth Forshee <seth.forshee@canonical.com>
To: Thomas Renninger <trenn@suse.de>
Cc: Azael Avalos <coproscefalo@gmail.com>,
Matthew Garrett <mjg@redhat.com>, Len Brown <lenb@kernel.org>,
platform-driver-x86@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] toshiba_acpi: Support alternate hotkey interfaces
Date: Mon, 19 Dec 2011 12:24:28 -0600 [thread overview]
Message-ID: <20111219182428.GC2737@thinkpad-t410> (raw)
In-Reply-To: <201112181501.36299.trenn@suse.de>
On Sun, Dec 18, 2011 at 03:01:35PM +0100, Thomas Renninger wrote:
> > In the DSDTs I've inspected there is an EC query method that looks like
> > it handles events for the hotkeys, but I've never been able to find
> > anything that will cause the GPE to trigger when the hotkeys are
> > pressed.
> Be careful, those EC event notifications do not show up in:
> /sys/firmware/acpi/interrupts/gpe*
> If no acpi irqs are happening (you said you've tried already):
> watch -n1 "cat /proc/interrupts |grep acpi"
> filtering the key events sounds appropriate.
> I see you dig quite a bit already:
I just went back and tried this specifically again to verify my memory
is correct. Without toshiba_acpi loaded, I see nothing. With it loaded
(with this patch series applied, which turns out to be important) I do
see the interrupt count increase. Further investigation leads me to
conclude that this activity appears to be associated with execution of
the INFO method -- reading and writing a variable in the EC address
space.
Seth
next prev parent reply other threads:[~2011-12-19 18:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 18:06 [PATCH 0/4] toshiba_acpi: Expanded hotkey support Seth Forshee
2011-12-15 18:06 ` [PATCH 1/4] ACPI: EC: Add ec_get_handle() Seth Forshee
2011-12-16 0:22 ` Thomas Renninger
2011-12-16 0:33 ` Matthew Garrett
2011-12-16 1:52 ` Thomas Renninger
2011-12-16 13:19 ` Thomas Renninger
2011-12-16 13:44 ` Corentin Chary
2011-12-16 14:18 ` Seth Forshee
2011-12-15 18:06 ` [PATCH 2/4] toshiba_acpi: Support alternate hotkey interfaces Seth Forshee
2011-12-17 8:31 ` Thomas Renninger
2011-12-17 11:32 ` Azael Avalos
2011-12-17 15:07 ` Seth Forshee
2011-12-18 14:01 ` Thomas Renninger
2011-12-19 18:24 ` Seth Forshee [this message]
2011-12-15 18:06 ` [PATCH 3/4] toshiba_acpi: Support additional hotkey scancodes Seth Forshee
2011-12-15 18:06 ` [PATCH 4/4] toshiba_acpi: Add blacklist for devices with hotkey problems Seth Forshee
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