Entropy¶
Overview¶
API Reference¶
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group
entropy_interface Entropy Interface.
Defines
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ENTROPY_BUSYWAIT¶
Typedefs
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typedef
entropy_get_entropy_t¶ Callback API to get entropy.
See entropy_get_entropy() for argument description
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typedef
entropy_get_entropy_isr_t¶ Callback API to get entropy from an ISR.
See entropy_get_entropy_isr() for argument description
Functions
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int
entropy_get_entropy(struct device *dev, u8_t *buffer, u16_t length)¶ Fills a buffer with entropy. Blocks if required in order to generate the necessary random data.
- Parameters
dev: Pointer to the entropy device.buffer: Buffer to fill with entropy.length: Buffer length.
- Return Value
0: on success.-ERRNO: errno code on error.
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static int
entropy_get_entropy_isr(struct device *dev, u8_t *buffer, u16_t length, u32_t flags)¶ Fills a buffer with entropy in a non-blocking or busy-wait manner. Callable from ISRs.
- Parameters
dev: Pointer to the device structure.buffer: Buffer to fill with entropy.length: Buffer length.flags: Flags to modify the behavior of the call.
- Return Value
number: of bytes filled with entropy or -error.
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