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USB: Allow autosuspend delay to equal 0

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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>
This commit is contained in:
Alan Stern
2007-03-13 16:39:15 -04:00
committed by Greg Kroah-Hartman
parent 6b157c9bf3
commit eaafbc3a8a
6 changed files with 29 additions and 10 deletions
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2
include/linux/usb.h
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@ -394,7 +394,7 @@ struct usb_device {
struct delayed_work autosuspend; /* for delayed autosuspends */
struct mutex pm_mutex; /* protects PM operations */
unsigned autosuspend_delay; /* in jiffies */
int autosuspend_delay; /* in jiffies */
unsigned auto_pm:1; /* autosuspend/resume in progress */
unsigned do_remote_wakeup:1; /* remote wakeup should be enabled */