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| author | Alex Chiang <achiang@hp.com> | 2009-10-21 21:45:46 -0600 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2009-11-24 13:33:33 -0500 |
| commit | 0cda8b91f2e096bbef1cb05f23c42e423eae7728 (patch) | |
| tree | 8877eb0183fb6e3ac9ce30b14f1ac984a0f3d88c /Documentation/ABI | |
| parent | db2820dd5445a44b4726f15a2bc89b9ded2503eb (diff) | |
| download | lwn-0cda8b91f2e096bbef1cb05f23c42e423eae7728.tar.gz lwn-0cda8b91f2e096bbef1cb05f23c42e423eae7728.zip | |
[CPUFREQ] Documentation: ABI: /sys/devices/system/cpu/cpu#/cpufreq/
This is a complex interface and is already described in
Documentation/cpu-freq/, especially in the user-guide.txt file.
No need to copy/paste all that information. Let's just alert the reader
to the presence of the user-guide.
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index a703b9e9aeb9..974e29f5da86 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -136,6 +136,24 @@ Description: Discover cpuidle policy and mechanism See files in Documentation/cpuidle/ for more information. +What: /sys/devices/system/cpu/cpu#/cpufreq/* +Date: pre-git history +Contact: cpufreq@vger.kernel.org +Description: Discover and change clock speed of CPUs + + Clock scaling allows you to change the clock speed of the + CPUs on the fly. This is a nice method to save battery + power, because the lower the clock speed, the less power + the CPU consumes. + + There are many knobs to tweak in this directory. + + See files in Documentation/cpu-freq/ for more information. + + In particular, read Documentation/cpu-freq/user-guide.txt + to learn how to control the knobs. + + What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X Date: August 2008 KernelVersion: 2.6.27 |