diff options
136 files changed, 15389 insertions, 1999 deletions
diff --git a/Documentation/usb/power-management.txt b/Documentation/usb/power-management.txt index b29d8e56cf2..c9ffa9ced7e 100644 --- a/Documentation/usb/power-management.txt +++ b/Documentation/usb/power-management.txt @@ -2,7 +2,7 @@ Alan Stern <stern@rowland.harvard.edu> - December 11, 2009 + October 28, 2010 @@ -107,9 +107,14 @@ allowed to issue dynamic suspends. The user interface for controlling dynamic PM is located in the power/ subdirectory of each USB device's sysfs directory, that is, in /sys/bus/usb/devices/.../power/ where "..." is the device's ID. The -relevant attribute files are: wakeup, control, and autosuspend. -(There may also be a file named "level"; this file was deprecated -as of the 2.6.35 kernel and replaced by the "control" file.) +relevant attribute files are: wakeup, control, and +autosuspend_delay_ms. (There may also be a file named "level"; this +file was deprecated as of the 2.6.35 kernel and replaced by the +"control" file. In 2.6.38 the "autosuspend" file will be deprecated +and replaced by the "autosuspend_delay_ms" file. The only difference +is that the newer file expresses the delay in milliseconds whereas the +older file uses seconds. Confusingly, both files are present in 2.6.37 +but only "autosuspend" works.) power/wakeup @@ -140,33 +145,36 @@ as of the 2.6.35 kernel and replaced by the "control" file.) suspended and autoresume was not allowed. This setting is no longer supported.) - power/autosuspend + power/autosuspend_delay_ms This file contains an integer value, which is the - number of seconds the device should remain i |