eaafbc3a8a
This patch (as867) adds an entry for the new power/autosuspend attribute in Documentation/ABI/testing, and it changes the behavior of the delay value. Now a delay of 0 means to autosuspend as soon as possible, and negative values will prevent autosuspend. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 lines
666 B
Text
15 lines
666 B
Text
What: /sys/bus/usb/devices/.../power/autosuspend
|
|
Date: March 2007
|
|
KernelVersion: 2.6.21
|
|
Contact: Alan Stern <stern@rowland.harvard.edu>
|
|
Description:
|
|
Each USB device directory will contain a file named
|
|
power/autosuspend. This file holds the time (in seconds)
|
|
the device must be idle before it will be autosuspended.
|
|
0 means the device will be autosuspended as soon as
|
|
possible. Negative values will prevent the device from
|
|
being autosuspended at all, and writing a negative value
|
|
will resume the device if it is already suspended.
|
|
|
|
The autosuspend delay for newly-created devices is set to
|
|
the value of the usbcore.autosuspend module parameter.
|