PIN_CTRL_RS 222 drivers/auxdisplay/hd44780.c hd->pins[PIN_CTRL_RS] = devm_gpiod_get(dev, "rs", GPIOD_OUT_HIGH); PIN_CTRL_RS 223 drivers/auxdisplay/hd44780.c if (IS_ERR(hd->pins[PIN_CTRL_RS])) { PIN_CTRL_RS 224 drivers/auxdisplay/hd44780.c ret = PTR_ERR(hd->pins[PIN_CTRL_RS]);