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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>
This commit is contained in:
Paul Bolle 2014-07-02 12:10:45 +02:00 committed by Greg Kroah-Hartman
parent 6c0f36954b
commit cc583db3d7
1 changed files with 7 additions and 7 deletions
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Documentation/ABI/stable/sysfs-bus-usb
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@ -3,13 +3,13 @@ Date: May 2007
KernelVersion: 2.6.23 KernelVersion: 2.6.23
Contact: Alan Stern <stern@rowland.harvard.edu> Contact: Alan Stern <stern@rowland.harvard.edu>
Description: Description:
If CONFIG_USB_PERSIST is set, then each USB device directory USB device directories can contain a file named power/persist.
will contain a file named power/persist. The file holds a The file holds a boolean value (0 or 1) indicating whether or
boolean value (0 or 1) indicating whether or not the not the "USB-Persist" facility is enabled for the device. For
"USB-Persist" facility is enabled for the device. Since the hubs this facility is always enabled and their device
facility is inherently dangerous, it is disabled by default directories will not contain this file.
for all devices except hubs. For more information, see
Documentation/usb/persist.txt. For more information, see Documentation/usb/persist.txt.
What: /sys/bus/usb/devices/.../power/autosuspend What: /sys/bus/usb/devices/.../power/autosuspend
Date: March 2007 Date: March 2007