1. Several pins need to read the state of the core board Hass
Himm configured by pin directly to the input mode, and then reads the state of the pin.
2. how to read
1. by writing to the drive, just like reading ordinary pin
3. Review himm source
Himm tool provides read and write source Hass SDK xxx / osdrv / tools / board_tools / reg-tools-1.0.0 / source / tools / lower.