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From: moreau francis <francis_moreau2000@yahoo.fr>
To: mb@bu3sch.de
Cc: linux-kernel@vger.kernel.org
Subject: [HW_RNG] How to use generic rng in kernel space
Date: Tue, 1 Aug 2006 12:09:37 +0000 (GMT)	[thread overview]
Message-ID: <20060801120937.69641.qmail@web25813.mail.ukl.yahoo.com> (raw)

Hi

I developped a HW RNG for a custom board and several
other drivers are using it through a special entry I made.
I was planning to move the code in order to use the generic
the RNG layer but I encounter an issue.

Currently it seems not possible for a driver to use HW RNG,
because there's no entry point for that. Is that something
deliberate ?

Another question about the implementation. If O_NONBLOCK
flag is passed when opening /dev/hw_random, how does the
read method ensure that the caller won't sleep since it calls
mutex_lock_interruptible() function unconditiannaly ? I must
miss something but don't know what...

Thanks

Francis




             reply	other threads:[~2006-08-01 12:09 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-01 12:09 moreau francis [this message]
2006-08-01 13:29 ` Alan Cox
2006-08-01 13:28   ` Re : " moreau francis
2006-08-01 20:49 ` Michael Buesch
2006-08-04 13:00   ` Re : " moreau francis
2006-08-04 21:08     ` Michael Buesch
2006-08-05  1:44       ` Jeff Garzik
2006-08-08 15:39       ` Re : " moreau francis
2006-08-08 17:34         ` Michael Buesch
2006-08-09 10:02           ` Re : " moreau francis

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