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carl9170: export HW random number generator
authorChristian Lamparter <chunkeey@googlemail.com>
Mon, 15 Aug 2011 18:09:54 +0000 (20:09 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Wed, 24 Aug 2011 18:41:42 +0000 (14:41 -0400)
All AR9170 hardware have a 16-Bit random number generator.
The documentation claims the values are suitable for
"security keys".

The "throughput" is around 320Kibit/s. It's slow, but it
does work without introducing any special offload
firmware commands.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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