| 0 constant gpio-input | |
| 1 constant gpio-output | |
| 2 constant gpio-interrupt | |
| 3 constant gpio-opendrain | |
| 0 constant gpio-int-disable | |
| 1 constant gpio-int-posedge | |
| 2 constant gpio-int-negedge | |
| 3 constant gpio-int-anyedge | |
| 4 constant gpio-int-lolevel | |
| 5 constant gpio-int-hilevel |