From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Huang Ying To: Bjorn Helgaas Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, "Rafael J. Wysocki" , Bjorn Mork , Huang Ying Subject: [RFC] PCI/PM: Add ABI document for sysfs file d3cold_allowed Date: Fri, 27 Jul 2012 16:07:34 +0800 Message-Id: <1343376454-28520-1-git-send-email-ying.huang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: This patch adds ABI document for the following sysfs file: /sys/bus/pci/devices/.../d3cold_allowed Signed-off-by: Huang Ying --- Documentation/ABI/testing/sysfs-bus-pci | 12 ++++++++++++ 1 file changed, 12 insertions(+) --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -210,3 +210,15 @@ Users: firmware assigned instance number of the PCI device that can help in understanding the firmware intended order of the PCI device. + +What: /sys/bus/pci/devices/.../d3cold_allowed +Date: July 2012 +Contact: Huang Ying +Description: + d3cold_allowed is bit to control whether the corresponding PCI + device can be put into D3Cold state. If it is cleared, the + device will never be put into D3Cold state. If it is set, the + device may be put into D3Cold state if other requirement are + satisfied too. Reading this attribute will show the current + value of d3cold_allowed bit. Writting this attribute will set + the value of d3cold_allowed bit.