Messages in this thread | | | Date | Tue, 1 Aug 2006 12:09:37 +0000 (GMT) | From | moreau francis <> | Subject | [HW_RNG] How to use generic rng in kernel space |
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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
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