From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965250Ab0GPLMs (ORCPT ); Fri, 16 Jul 2010 07:12:48 -0400 Received: from cantor.suse.de ([195.135.220.2]:59079 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965150Ab0GPLLm (ORCPT ); Fri, 16 Jul 2010 07:11:42 -0400 From: Thomas Renninger To: lenb@kernel.org Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, Thomas Renninger , Alexey Starikovskiy Subject: [PATCH 7/7] Documentation: Add new /sys/kernel/debug/ec/* files to ABI Date: Fri, 16 Jul 2010 13:11:37 +0200 Message-Id: <1279278697-3694-8-git-send-email-trenn@suse.de> X-Mailer: git-send-email 1.6.3 In-Reply-To: <1279278697-3694-1-git-send-email-trenn@suse.de> References: <1279278697-3694-1-git-send-email-trenn@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Thomas Renninger CC: Alexey Starikovskiy CC: Len Brown CC: linux-kernel@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: platform-driver-x86@vger.kernel.org --- Documentation/ABI/testing/debugfs-ec | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) create mode 100644 Documentation/ABI/testing/debugfs-ec diff --git a/Documentation/ABI/testing/debugfs-ec b/Documentation/ABI/testing/debugfs-ec new file mode 100644 index 0000000..6546115 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-ec @@ -0,0 +1,20 @@ +What: /sys/kernel/debug/ec/*/{gpe,use_global_lock,io} +Date: July 2010 +Contact: Thomas Renninger +Description: + +General information like which GPE is assigned to the EC and whether +the global lock should get used. +Knowing the EC GPE one can watch the amount of HW events related to +the EC here (XY -> GPE number from /sys/kernel/debug/ec/*/gpe): +/sys/firmware/acpi/interrupts/gpeXY + +The io file is binary and a userspace tool located here: +ftp://ftp.suse.com/pub/people/trenn/sources/ec/ +should get used to read out the 256 Embedded Controller registers +or writing to them. + +CAUTION: Do not write to the Embedded Controller if you don't know +what you are doing! Rebooting afterwards also is a good idea. +This can influence the way your machine is cooled and fans may +not get switched on again after you did a wrong write. -- 1.6.3