i went looking for how the i810 rng exported data to the entropy pool
after reading the 2.4 help text, and was confused when i found no code.
this note was in Documentation/i810_rng.txt:

Version 0.9.5:
* Rip out entropy injection via timer.  It never ever
* worked, and a better solution (rngd) is now available.

so the following updates Configure.help to the 2.6 entry:

diff -ur linux-2.4.22-pre7-pristine/Documentation/Configure.help linux-2.4.21/Documentation/Configure.help
--- linux-2.4.22-pre7-pristine/Documentation/Configure.help	2003-07-23 16:40:27.000000000 -0400
+++ linux-2.4.21/Documentation/Configure.help	2003-07-23 16:44:45.000000000 -0400
@@ -18725,9 +18725,7 @@
   This driver provides kernel-side support for the Random Number
   Generator hardware found on Intel i8xx-based motherboards.
 
-  Both a character driver, used to read() entropy data, and a timer
-  function which automatically adds entropy directly into the
-  kernel pool, are exported by this driver.
+  Provides a character driver, used to read() entropy data.
 
   To compile this driver as a module ( = code which can be inserted in
   and removed from the running kernel whenever you want), say M here

-- 
nick black <dank@reflexsecurity.com>
"np:  nondeterministic polynomial-time
the class of dashed hopes and idle dreams." - the complexity zoo