MAX310X_GPIODATA_REG
val = max310x_port_read(port, MAX310X_GPIODATA_REG);
max310x_port_update(port, MAX310X_GPIODATA_REG, 1 << (offset % 4),
max310x_port_update(port, MAX310X_GPIODATA_REG, 1 << (offset % 4),
case MAX310X_GPIODATA_REG: