PM / hibernate: Make passing hibernate offsets more friendly

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

diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 1e0d1dac706bb6cb45d079d13019be06a4ed4788..2f813d644c696d7b088616fc9ca62986ef1b5a20 100644 (file)
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -287,3 +287,17 @@ Description:
                Writing a "1" to this file enables the debug messages and
                writing a "0" (default) to it disables them.  Reads from
                this file return the current value.
+
+What:          /sys/power/resume_offset
+Date:          April 2018
+Contact:       Mario Limonciello <mario.limonciello@dell.com>
+Description:
+               This file is used for telling the kernel an offset into a disk
+               to use when hibernating the system such as with a swap file.
+
+               Reads from this file will display the current offset
+               the kernel will be using on the next hibernation
+               attempt.
+
+               Using this sysfs file will override any values that were
+               set using the kernel command line for disk offset.
\ No newline at end of file