Update s/GPIO
Fixes bug 490. The wrong register was used as the offset to the pull up/down clock enables.
Has been tested on a RasPi 3B+ and a RasPi B rev 2.
Fixes bug 490. The wrong register was used as the offset to the pull up/down clock enables.
Has been tested on a RasPi 3B+ and a RasPi B rev 2.