Hi Stephen, Am 20.11.19 um 04:16 schrieb Stephen Brennan: > This patch series enables support for the HWRNG included on the Raspberry > Pi 4. It is simply a rebase of Stefan's branch [1]. I went ahead and > tested this out on a Pi 4. Prior to this patch series, attempting to use > the hwrng gives: > > $ head -c 2 /dev/hwrng > head: /dev/hwrng: Input/output error > > After this series, the same command gives two random bytes. just a note: a more expressive test would be running rngtest (package rng-tools) on this device. Regards Stefan