Zephyr API Documentation 3.7.99
A Scalable Open Source RTOS
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Entropy Interface . More...
Data Structures | |
struct | entropy_driver_api |
Entropy driver API structure. More... | |
Macros | |
#define | ENTROPY_BUSYWAIT BIT(0) |
Driver is allowed to busy-wait for random data to be ready. | |
Typedefs | |
typedef int(* | entropy_get_entropy_t) (const struct device *dev, uint8_t *buffer, uint16_t length) |
Callback API to get entropy. | |
typedef int(* | entropy_get_entropy_isr_t) (const struct device *dev, uint8_t *buffer, uint16_t length, uint32_t flags) |
Callback API to get entropy from an ISR. | |
Functions | |
int | entropy_get_entropy (const struct device *dev, uint8_t *buffer, uint16_t length) |
Fills a buffer with entropy. | |
static int | entropy_get_entropy_isr (const struct device *dev, uint8_t *buffer, uint16_t length, uint32_t flags) |
Fills a buffer with entropy in a non-blocking or busy-wait manner. | |
Entropy Interface .
#define ENTROPY_BUSYWAIT BIT(0) |
#include <zephyr/drivers/entropy.h>
Driver is allowed to busy-wait for random data to be ready.
typedef int(* entropy_get_entropy_isr_t) (const struct device *dev, uint8_t *buffer, uint16_t length, uint32_t flags) |
#include <zephyr/drivers/entropy.h>
Callback API to get entropy from an ISR.
See entropy_get_entropy_isr() for argument description
#include <zephyr/drivers/entropy.h>
Callback API to get entropy.
See entropy_get_entropy() for argument description
#include <zephyr/drivers/entropy.h>
Fills a buffer with entropy.
Blocks if required in order to generate the necessary random data.
dev | Pointer to the entropy device. |
buffer | Buffer to fill with entropy. |
length | Buffer length. |
0 | on success. |
-ERRNO | errno code on error. |
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inlinestatic |
#include <zephyr/drivers/entropy.h>
Fills a buffer with entropy in a non-blocking or busy-wait manner.
Callable from ISRs.
dev | Pointer to the device structure. |
buffer | Buffer to fill with entropy. |
length | Buffer length. |
flags | Flags to modify the behavior of the call. |
number | of bytes filled with entropy or -error. |