Re: [PATCH v2 2/3] hwrng: starfive - Add TRNG driver for StarFive SoC

[Herbert Xu]

On Mon, Jan 09, 2023 at 02:58:14AM +0000, JiaJie Ho wrote:
>
> My trng device requires sending a generate new number cmd before each read.
> It then only populates the data registers with new random number and raise an interrupt when ready.
> If user choose to not wait, they will always get stale bits. 
> Is it okay to always return error if wait=false ?

What is the length of the wait time? Is there an upper bound?
What is the average wait time?

Thanks,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt