RNG Driver

Author: Hunter Ross @hunteross

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Source: /crates/kernel/src/device/rng.rs

Note: This driver is for the Raspberry Pi 3 (BCM2385) and will not work for the Raspberry Pi 4. This driver has also not been thoroughly tested.

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API

rng_read(&mut self, buf: &mut [u32], wait: bool) -> usize

The rng device will try to fill the provided buffer with as many random words as it can.

If wait == false and no words are ready then it returns 0. If wait == true, the device will wait until a word is ready to be read and will return the number of words put into the buffer.

Note: The device may not fill the entire length of the buffer