and 795x. This was present in the driver before, but disabled due to
problems with the actual randomness of generated numbers on the
ubiquitious 7900-series parts. The code here is far, far more
conservative than anyone else's driver for this RNG is -- but I
believe that conservatism is called for, because the 79xx RNG
design is missing a number of pieces from Hifn's "reference" 6500
RNG, and thus the numbers it generates must be treated with some
care.
Support for the 7811 RNG (which is a full-fledged 6500 type
generator) is pretty much the same here as in other variants of
this driver, except that it uses Hifn's "worst case" estimate of
actual entropy per output bit, so it will accumulate bits much
more slowly. The 7811 support is untested.
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