Userspace

modulename: governor_userspace.ko

configname: CONFIG_DEVFREQ_GOV_USERSPACE

Linux Kernel Configuration
└─>Device Drivers
└─>Generic Dynamic Voltage and Frequency Scaling (DVFS) support
└─>Userspace
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Sets the frequency at the user specified one.
This governor returns the user configured frequency if there
has been an input to /sys/devices/.../userspace/set_freq.
Otherwise, the governor does not change the frequency
given at the initialization.

source code: