um: clean Kconfig up a bit

[karo-tx-linux.git] / drivers / char / hw_random / Kconfig

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 1d2ebc7a494727d2845f6e61d2aca612ae66f3cb..e5cd79c5adf1c9e1f3146bbb35f7208d227eb439 100644 (file)
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -222,3 +222,18 @@ config HW_RANDOM_PPC4XX
         module will be called ppc4xx-rng.
 
         If unsure, say N.
+
+config UML_RANDOM
+       depends on UML
+       tristate "Hardware random number generator"
+       help
+         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.