040000 tree 9bb70b9d454789a7ebaea5a7ba81b96e5e77c7f9	gpio
100644 blob ba354e1f4e6d4ce4320f8a75f678458d4a4dd900	index.rst
100644 blob 4dbfa4ce92a07659d9eed8c58e0f904412ac569b	io_ordering.rst