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 are 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			Valid options:
13				"silent"
14				"normal"
15				"overclock"
16		Note that not all laptops support all of these options.
17		Specifically, not all support the "overclock" option,
18		and it's still unknown if this value even changes
19		anything, other than making the user feel a bit better.
20
21What:		/sys/devices/platform/samsung/battery_life_extender
22Date:		December 1, 2011
23KernelVersion:	3.3
24Contact:	Corentin Chary <corentin.chary@gmail.com>
25Description:	Max battery charge level can be modified, battery cycle
26		life can be extended by reducing the max battery charge
27		level.
28		0 means normal battery mode (100% charge)
29		1 means battery life extender mode (80% charge)
30
31What:		/sys/devices/platform/samsung/usb_charge
32Date:		December 1, 2011
33KernelVersion:	3.3
34Contact:	Corentin Chary <corentin.chary@gmail.com>
35Description:	Use your USB ports to charge devices, even
36		when your laptop is powered off.
37		1 means enabled, 0 means disabled.
38
39What:		/sys/devices/platform/samsung/lid_handling
40Date:		December 11, 2014
41KernelVersion:	3.19
42Contact:	Julijonas Kikutis <julijonas.kikutis@gmail.com>
43Description:	Some Samsung laptops handle lid closing quicker and
44		only handle lid opening with this mode enabled.
45		1 means enabled, 0 means disabled.
46