CONFIG_HW_RANDOM_EXYNOS: Samsung Exynos True Random Number Generator support

General informations

The Linux kernel configuration item CONFIG_HW_RANDOM_EXYNOS has multiple definitions:

The configuration item CONFIG_HW_RANDOM_EXYNOS:

prompt: Samsung Exynos True Random Number Generator support
type: tristate
depends on: ( CONFIG_ARCH_EXYNOS || CONFIG_COMPILE_TEST ) && ( CONFIG_HAS_IOMEM ) && ( CONFIG_ARCH_EXYNOS )
defined in drivers/char/hw_random/Kconfig
found in Linux kernels: 4.16–4.20, 5.0–5.19, 6.0–6.12
modules built: exynos-rng, exynos-trng

This driver provides support for the True Random Number Generator available in Exynos SoCs.

To compile this driver as a module, choose M here: the module will be called exynos-trng.

If unsure, say Y.

The configuration item CONFIG_HW_RANDOM_EXYNOS:

prompt: EXYNOS HW random number generator support
type: tristate
depends on: ( CONFIG_ARCH_EXYNOS || CONFIG_COMPILE_TEST ) && ( CONFIG_HAS_IOMEM )
defined in drivers/char/hw_random/Kconfig
found in Linux kernels: 3.6–3.19, 4.0–4.11
modules built: exynos-rng, exynos-trng

This driver provides kernel-side support for the Random Number Generator hardware found on EXYNOS SOCs.

To compile this driver as a module, choose M here: the module will be called exynos-rng.

If unsure, say Y.

Raw data from LKDDb:

lkddb module exynos-rng CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/Kconfig : "EXYNOS HW random number generator support" # in 3.6–3.19, 4.0–4.11
lkddb module exynos-trng CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/Kconfig : "Samsung Exynos True Random Number Generator support" # in 4.16–4.20, 5.0–5.19, 6.0–6.12
lkddb of "" "" "samsung,exynos4-rng" : CONFIG_HW_RANDOM CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/exynos-rng.c # in 4.4–4.11
lkddb of "" "" "samsung,exynos5250-trng" : CONFIG_HW_RANDOM CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/exynos-trng.c # in 4.16–4.20, 5.0–5.19, 6.0–6.12
lkddb of "" "" "samsung,exynos850-trng" : CONFIG_HW_RANDOM CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/exynos-trng.c # in 6.11–6.12
lkddb platform "exynos-rng" : CONFIG_HW_RANDOM CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/exynos-rng.c # in 3.6–3.19, 4.0–4.11
lkddb platform "exynos-trng" : CONFIG_HW_RANDOM CONFIG_HW_RANDOM_EXYNOS : drivers/char/hw_random/exynos-trng.c # in 4.16–4.20, 5.0–5.19, 6.0–6.12

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