patch usb-power-management-documenation-update.patch added to gregkh-2.6 tree

[<gregkh@xxxxxxx>]

This is a note to let you know that I've just added the patch titled

     Subject: USB: power-management documenation update

to my gregkh-2.6 tree.  Its filename is

     usb-power-management-documenation-update.patch

This tree can be found at 
    http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/


>From stern@xxxxxxxxxxxxxxxxxxx Fri Nov 16 08:58:23 2007
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 16 Nov 2007 11:58:15 -0500 (EST)
Subject: USB: power-management documenation update
To: Greg KH <greg@xxxxxxxxx>, Tilman Schmidt <tilman@xxxxxxx>
Cc: USB development list <linux-usb-devel@xxxxxxxxxxxxxxxxxxxxx>
Message-ID: <Pine.LNX.4.44L0.0711161157390.3268-100000@xxxxxxxxxxxxxxxxxxxx>


This patch (as1014) was partly written by Tilman Schmidt.  It
clarifies the USB power-management documentation by explaining that
when a disconnect occurs, a suspend method call might not be followed
by either a resume or a reset_resume call.

Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Tilman Schmidt <tilman@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 Documentation/usb/power-management.txt |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/Documentation/usb/power-management.txt
+++ b/Documentation/usb/power-management.txt
@@ -278,6 +278,14 @@ optional.  The methods' jobs are quite s
 	(although the interfaces will be in the same altsettings as
 	before the suspend).
 
+If the device is disconnected or powered down while it is suspended,
+the disconnect method will be called instead of the resume or
+reset_resume method.  This is also quite likely to happen when
+waking up from hibernation, as many systems do not maintain suspend
+current to the USB host controllers during hibernation.  (It's
+possible to work around the hibernation-forces-disconnect problem by
+using the USB Persist facility.)
+
 The reset_resume method is used by the USB Persist facility (see
 Documentation/usb/persist.txt) and it can also be used under certain
 circumstances when CONFIG_USB_PERSIST is not enabled.  Currently, if a


Patches currently in gregkh-2.6 which might be from stern@xxxxxxxxxxxxxxxxxxx are

driver/pm-acquire-device-locks-prior-to-suspending.patch
usb/usb-add-support-for-an-older-firmware-revision-for-the-nikon-d200.patch
usb/usb-fix-priority-mistakes-in-drivers-usb-core-hub.c.patch
usb/usb-fix-signr-comment-in-usbdevice_fs.h.patch
usb/usb-mailing-lists-have-changed.patch
usb/usb-power-management-documenation-update.patch
usb/usb-autosuspend-for-cdc-acm.patch
usb/usb-storage-always-set-the-allow_restart-flag.patch

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