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BCMRNG(4) Device Drivers Manual BCMRNG(4)

bcmrngBroadcom BCM2835/BCM2836/BCM2837 random number generator

bcmrng* at fdt?

The bcmrng driver provides support for the random number generator found on the Broadcom BCM2835/BCM2836/BCM2837 SoC.

It feeds the random subsystem's entropy pool with up to 128 bits of random data every second.

intro(4), random(4), arc4random(9)

The bcmrng driver first appeared in OpenBSD 6.3.

The bcmrng driver was written by Mark Kettenis <>.

June 20, 2020 OpenBSD-current