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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/ABI/testing/sysfs-driver-samsung-laptop
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
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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.