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CONFIG_HID_U2FZERO: U2F Zero LED and RNG support

General informations

The Linux kernel configuration item CONFIG_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.



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