Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...

[pandora-kernel.git] / Documentation / ABI / testing / sysfs-power

diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 194ca44..b464d12 100644 (file)
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -158,3 +158,17 @@ Description:
                successful, will make the kernel abort a subsequent transition
                to a sleep state if any wakeup events are reported after the
                write has returned.
+
+What:          /sys/power/reserved_size
+Date:          May 2011
+Contact:       Rafael J. Wysocki <rjw@sisk.pl>
+Description:
+               The /sys/power/reserved_size file allows user space to control
+               the amount of memory reserved for allocations made by device
+               drivers during the "device freeze" stage of hibernation.  It can
+               be written a string representing a non-negative integer that
+               will be used as the amount of memory to reserve for allocations
+               made by device drivers' "freeze" callbacks, in bytes.
+
+               Reading from this file will display the current value, which is
+               set to 1 MB by default.