I've been wondering for last few days how exactly does it work. We can set kernel runtimes parameters using sysctl or echo boolen 1> /proc/sys/module/exactParameter But in /sys/modules/module/parameters/parameter we can also set values. Are parameters for modules in /proc/sys/ related only to hard complied into kernel? or there could be parameters for Loadable Kernel Modules also? LKM after being loaded into running Kernel reveal their parameters in /sys/modules/module/paraeter/params. Does it mean, that there aren't parameters for modules compiled into Kernel? What is difference between both directories.