Documentation: sysfs-bus-usb: update power/persist description

There's no power/persist file for hubs. And CONFIG_USB_PERSIST was
removed in v2.6.26. Update the description of power/persist accordingly.
Also remove the line on its default value. It is not entirely correct, as
CONFIG_USB_DEFAULT_PERSIST and the USB_QUIRK_RESET flag influence the
default. It is not needed to understand this file anyhow.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/ABI/stable/sysfs-bus-usb b/Documentation/ABI/stable/sysfs-bus-usb
index a6b6857..e2bc700 100644 (file)
--- a/Documentation/ABI/stable/sysfs-bus-usb
+++ b/Documentation/ABI/stable/sysfs-bus-usb
@@ -3,13 +3,13 @@ Date:         May 2007
 KernelVersion: 2.6.23
 Contact:       Alan Stern <stern@rowland.harvard.edu>
 Description:
-               If CONFIG_USB_PERSIST is set, then each USB device directory
-               will contain a file named power/persist.  The file holds a
-               boolean value (0 or 1) indicating whether or not the
-               "USB-Persist" facility is enabled for the device.  Since the
-               facility is inherently dangerous, it is disabled by default
-               for all devices except hubs.  For more information, see
-               Documentation/usb/persist.txt.
+               USB device directories can contain a file named power/persist.
+               The file holds a boolean value (0 or 1) indicating whether or
+               not the "USB-Persist" facility is enabled for the device.  For
+               hubs this facility is always enabled and their device
+               directories will not contain this file.
+
+               For more information, see Documentation/usb/persist.txt.
 
 What:          /sys/bus/usb/devices/.../power/autosuspend
 Date:          March 2007