samsung-laptop: add usb charge support

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-driver-samsung-laptop b/Documentation/ABI/testing/sysfs-driver-samsung-laptop
index a6a56e11ebaf..f05b897805e5 100644
--- a/Documentation/ABI/testing/sysfs-driver-samsung-laptop
+++ b/Documentation/ABI/testing/sysfs-driver-samsung-laptop
@@ -27,3 +27,11 @@ Description:	Max battery charge level can be modified, battery cycle
                 level.
                 0 means normal battery mode (100% charge)
                 1 means battery life extender mode (80% charge)
+
+What:           /sys/devices/platform/samsung/usb_charge
+Date:           December 1, 2011
+KernelVersion:  3.3
+Contact:        Corentin Chary <corentin.chary@gmail.com>
+Description:    Use your USB ports to charge devices, even
+                when your laptop is powered off.
+                1 means enabled, 0 means disabled.