CONFIG_HID_U2FZERO: U2F Zero LED and RNG support

General informations

The Linux kernel configuration item CONFIG_HID_U2FZERO:

• prompt: U2F Zero LED and RNG support
• type: tristate
• depends on: ( CONFIG_USB_HID ) && ( CONFIG_LEDS_CLASS ) && ( CONFIG_HW_RANDOM )
• defined in drivers/hid/Kconfig
• found in Linux kernels: 5.2–5.19, 6.0–6.8, 6.9-rc+HEAD
• modules built: hid-u2fzero

Help text

Support for the LED of the U2F Zero device.

U2F Zero supports custom commands for blinking the LED and getting data from the internal hardware RNG. The internal hardware can be used to feed the enthropy pool.

U2F Zero only supports blinking its LED, so this driver doesn't allow setting the brightness to anything but 1, which will trigger a single blink and immediately reset back to 0.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb hid 0003 000010c4 00008acf : CONFIG_HID CONFIG_HID_U2FZERO : drivers/hid/hid-u2fzero.c # in 5.2–5.19, 6.0–6.2, 6.2+HEAD
• lkddb hid 0003 000010c4 00008acf : CONFIG_HID_SUPPORT CONFIG_HID_U2FZERO : drivers/hid/hid-u2fzero.c # in 6.3–6.8, 6.9-rc+HEAD
• lkddb hid 0003 000020a0 00004287 : CONFIG_HID CONFIG_HID_U2FZERO : drivers/hid/hid-u2fzero.c # in 5.16–5.19, 6.0–6.2, 6.2+HEAD
• lkddb hid 0003 000020a0 00004287 : CONFIG_HID_SUPPORT CONFIG_HID_U2FZERO : drivers/hid/hid-u2fzero.c # in 6.3–6.8, 6.9-rc+HEAD
• lkddb module hid-u2fzero CONFIG_HID_U2FZERO : drivers/hid/Kconfig : "U2F Zero LED and RNG support" # in 5.2–5.19, 6.0–6.8, 6.9-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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