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