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authorAlex Chiang <achiang@hp.com>2009-10-21 21:45:46 -0600
committerDave Jones <davej@redhat.com>2009-11-24 13:33:33 -0500
commit0cda8b91f2e096bbef1cb05f23c42e423eae7728 (patch)
tree8877eb0183fb6e3ac9ce30b14f1ac984a0f3d88c /Documentation/ABI
parentdb2820dd5445a44b4726f15a2bc89b9ded2503eb (diff)
[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-cpu18
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 a703b9e9aeb..974e29f5da8 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