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Commit | Line | Data |
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2d70b73a GKH |
1 | What: /sys/devices/platform/samsung/performance_level |
2 | Date: January 1, 2010 | |
3 | KernelVersion: 2.6.33 | |
bc5bca53 | 4 | Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
2d70b73a GKH |
5 | Description: 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. | |
cb5b5c91 CC |
20 | |
21 | What: /sys/devices/platform/samsung/battery_life_extender | |
22 | Date: December 1, 2011 | |
23 | KernelVersion: 3.3 | |
24 | Contact: Corentin Chary <corentin.chary@gmail.com> | |
25 | Description: 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) | |
3a75d378 CC |
30 | |
31 | What: /sys/devices/platform/samsung/usb_charge | |
32 | Date: December 1, 2011 | |
33 | KernelVersion: 3.3 | |
34 | Contact: Corentin Chary <corentin.chary@gmail.com> | |
35 | Description: Use your USB ports to charge devices, even | |
36 | when your laptop is powered off. | |
37 | 1 means enabled, 0 means disabled. | |
b0dcaf4f JK |
38 | |
39 | What: /sys/devices/platform/samsung/lid_handling | |
40 | Date: December 11, 2014 | |
41 | KernelVersion: 3.19 | |
42 | Contact: Julijonas Kikutis <julijonas.kikutis@gmail.com> | |
43 | Description: Some Samsung laptops handle lid closing quicker and | |
44 | only handle lid opening with this mode enabled. | |
45 | 1 means enabled, 0 means disabled. |