1What:		/sys/devices/platform/samsung/performance_level
2Date:		January 1, 2010
3KernelVersion:	2.6.33
4Contact:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5Description:	Some Samsung laptops have different "performance levels"
6		that can be modified by a function key, and by this
7		sysfs file.  These values don't always make a whole lot
8		of sense, but some users like to modify them to keep
9		their fans quiet at all costs.  Reading from this file
10		will show the current performance level.  Writing to the
11		file can change this value.
12
13			Valid options:
14				- "silent"
15				- "normal"
16				- "overclock"
17
18		Note that not all laptops support all of these options.
19		Specifically, not all support the "overclock" option,
20		and it's still unknown if this value even changes
21		anything, other than making the user feel a bit better.
22
23What:		/sys/devices/platform/samsung/battery_life_extender
24Date:		December 1, 2011
25KernelVersion:	3.3
26Contact:	Corentin Chary <corentin.chary@gmail.com>
27Description:	Max battery charge level can be modified, battery cycle
28		life can be extended by reducing the max battery charge
29		level.
30
31		- 0 means normal battery mode (100% charge)
32		- 1 means battery life extender mode (80% charge)
33
34What:		/sys/devices/platform/samsung/usb_charge
35Date:		December 1, 2011
36KernelVersion:	3.3
37Contact:	Corentin Chary <corentin.chary@gmail.com>
38Description:	Use your USB ports to charge devices, even
39		when your laptop is powered off.
40		1 means enabled, 0 means disabled.
41
42What:		/sys/devices/platform/samsung/lid_handling
43Date:		December 11, 2014
44KernelVersion:	3.19
45Contact:	Julijonas Kikutis <julijonas.kikutis@gmail.com>
46Description:	Some Samsung laptops handle lid closing quicker and
47		only handle lid opening with this mode enabled.
48		1 means enabled, 0 means disabled.
49