1. General Information
=======================
-The CPUFreq core code is located in linux/kernel/cpufreq.c. This
+The CPUFreq core code is located in drivers/cpufreq/cpufreq.c. This
cpufreq code offers a standardized interface for the CPUFreq
architecture drivers (those pieces of code that do actual
frequency transitions), as well as to "notifiers". These are device
cpu - number of the affected CPU
old - old frequency
new - new frequency
+
+If the cpufreq core detects the frequency has changed while the system
+was suspended, these notifiers are called with CPUFREQ_RESUMECHANGE as
+second argument.