add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

1
2
# From http://www.sane-project.org/sane-md5sums.txt
md5 f9ed5405b3c12f07c6ca51ee60225fe7  sane-backends-1.0.25.tar.gz