Help¶

Low water-mark threshold in bytes to trigger entropy generation for
ISR consumers. As soon as the number of available bytes in the
buffer goes below this number hardware entropy generation will be
started.

Direct dependencies¶

ENTROPY_STM32_RNG && ENTROPY_GENERATOR

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to the empty string.

Kconfig definition¶

At <Zephyr>/drivers/entropy/Kconfig.stm32:49

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:30 → <Zephyr>/drivers/entropy/Kconfig:15

Menu path: (Top) → Device Drivers → Entropy Drivers → STM32 RNG driver

config ENTROPY_STM32_ISR_THRESHOLD
    int "ISR-mode random number pool low-water threshold"
    range 12 255
    depends on ENTROPY_STM32_RNG && ENTROPY_GENERATOR
    help
      Low water-mark threshold in bytes to trigger entropy generation for
      ISR consumers. As soon as the number of available bytes in the
      buffer goes below this number hardware entropy generation will be
      started.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)