From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751967AbaLRWqZ (ORCPT ); Thu, 18 Dec 2014 17:46:25 -0500 Received: from mga03.intel.com ([134.134.136.65]:3641 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751796AbaLRWqY (ORCPT ); Thu, 18 Dec 2014 17:46:24 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,603,1413270000"; d="scan'208";a="626252202" From: Tomas Winkler To: gregkh@linuxfoundation.org Cc: arnd@arndb.de, linux-kernel@vger.kernel.org, Tomas Winkler Subject: [char-misc V2 RESEND] mei: add ABI documentation for fw_status exported through sysfs Date: Fri, 19 Dec 2014 00:44:59 +0200 Message-Id: <1418942699-18751-1-git-send-email-tomas.winkler@intel.com> X-Mailer: git-send-email 1.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Tomas Winkler --- V2: rephrase the description Documentation/ABI/testing/sysfs-class-mei | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei index 0ec8b8178c41..80d9888a8ece 100644 --- a/Documentation/ABI/testing/sysfs-class-mei +++ b/Documentation/ABI/testing/sysfs-class-mei @@ -14,3 +14,18 @@ Description: The /sys/class/mei/meiN directory is created for each probed mei device +What: /sys/class/mei/meiN/fw_status +Date: Nov 2014 +KernelVersion: 3.19 +Contact: Tomas Winkler +Description: Display fw status registers content + + The ME FW writes its status information into fw status + registers for BIOS and OS to monitor fw health. + + The register contains running state, power management + state, error codes, and others. The way the registers + are decoded depends on PCH or SoC generation. + Also number of registers varies between 1 and 6 + depending on generation. + -- 1.9.3