| // SPDX-License-Identifier: GPL-2.0+ |
| * Copyright (c) 2019, Linaro Limited |
| * dm_rng_read() - read a random number seed from the rng device |
| * The function blocks until the requested number of bytes is read. |
| * @dev: random number generator device |
| * @buffer: input buffer to put the read random seed into |
| * @size: number of random bytes to read |
| * Return: 0 if OK, -ve on error |
| int dm_rng_read(struct udevice *dev, void *buffer, size_t size); |
| * struct dm_rng_ops - operations for the hwrng uclass |
| * This structures contains the function implemented by a hardware random |
| * number generation device. |
| * @read: read a random bytes |
| * The function blocks until the requested number of bytes is read. |
| * @read.dev: random number generator device |
| * @read.data: input buffer to read the random seed into |
| * @read.max: number of random bytes to read |
| * @read.Return: 0 if OK, -ve on error |
| int (*read)(struct udevice *dev, void *data, size_t max); |