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authorGreg Kroah-Hartman <gregkh@suse.de>2011-03-11 12:41:19 -0500
committerMatthew Garrett <mjg@redhat.com>2011-03-28 06:28:12 -0400
commit2d70b73ae5b85c9d13f5dfbb8fc4fd5edae633dc (patch)
tree63823f6eed7ca8bfa487149e71c077a724d736d9 /Documentation
parent298f19b2547ba11a577a15ca329daa6f4bbf5ad8 (diff)
Platform: add Samsung Laptop platform driver
This adds the samsung-laptop driver to the kernel. It now supports all known Samsung laptops that use the SABI interface. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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1What: /sys/devices/platform/samsung/performance_level
2Date: January 1, 2010
3KernelVersion: 2.6.33
4Contact: Greg Kroah-Hartman <gregkh@suse.de>
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.