GPIOD_FLAGS_BIT_OPEN_DRAIN
else if (dflags & GPIOD_FLAGS_BIT_OPEN_DRAIN) {
gflags = GPIOD_IN | GPIOD_FLAGS_BIT_OPEN_DRAIN;
GPIOD_OUT_LOW_OPEN_DRAIN = GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_OPEN_DRAIN,
GPIOD_OUT_HIGH_OPEN_DRAIN = GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_OPEN_DRAIN,