The v6.0 single-producer input architecture registers the input
producer scheme as 'input/evdev' (not the legacy 'input' scheme).
Without this update, the initfs would try to register 'input' but
the inputd binary would attempt to register 'input/evdev' — leading
to a 'scheme already registered' error or a missing scheme entirely.
Also update the description to reflect the v6.0 role: pure evdev
ring buffer (not the legacy VT input and graphics multiplexer).