add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# Locally computed:
sha256 08e4081ce50ce2e620af6e950bdcf64cea2ab4c81ab3c5ea05da25d82ad62db6  cups-filters-1.27.5.tar.gz
sha256 527463af65312372111804589a9624f4c52813e253062ae351e75af5003f317f  COPYING