Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-driver-samsung-laptop

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+What:          /sys/devices/platform/samsung/performance_level
+Date:          January 1, 2010
+KernelVersion: 2.6.33
+Contact:       Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Description:   Some Samsung laptops have different "performance levels"
+               that are can be modified by a function key, and by this
+               sysfs file.  These values don't always make a whole lot
+               of sense, but some users like to modify them to keep
+               their fans quiet at all costs.  Reading from this file
+               will show the current performance level.  Writing to the
+               file can change this value.
+                       Valid options:
+                               "silent"
+                               "normal"
+                               "overclock"
+               Note that not all laptops support all of these options.
+               Specifically, not all support the "overclock" option,
+               and it's still unknown if this value even changes
+               anything, other than making the user feel a bit better.
+
+What:          /sys/devices/platform/samsung/battery_life_extender
+Date:          December 1, 2011
+KernelVersion: 3.3
+Contact:       Corentin Chary <corentin.chary@gmail.com>
+Description:   Max battery charge level can be modified, battery cycle
+               life can be extended by reducing the max battery charge
+               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.
+
+What:          /sys/devices/platform/samsung/lid_handling
+Date:          December 11, 2014
+KernelVersion: 3.19
+Contact:       Julijonas Kikutis <julijonas.kikutis@gmail.com>
+Description:   Some Samsung laptops handle lid closing quicker and
+               only handle lid opening with this mode enabled.
+               1 means enabled, 0 means disabled.