gpiod_configure_flags
ret = gpiod_configure_flags(desc, label, lflags, dflags);
ret = gpiod_configure_flags(desc, label, lflags, dflags);
ret = gpiod_configure_flags(desc, con_id, lookupflags, flags);
int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id,