Hardware random number generator

modulename: random.ko

configname: CONFIG_UML_RANDOM

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Hardware random number generator
In linux kernel since version 2.6.12  
This option enables UML's "hardware" random number generator. It
attaches itself to the host's /dev/random, supplying as much entropy
as the host has, rather than the small amount the UML gets from its
own drivers. It registers itself as a standard hardware random number
generator, major 10, minor 183, and the canonical device name is
/dev/hwrng.
The way to make use of this is to install the rng-tools package
(check your distro, or download from
http://sourceforge.net/projects/gkernel/). rngd periodically reads
/dev/hwrng and injects the entropy into /dev/random.

source code:
depends
CONFIG_UML