uart tx running

source/firmware/kernel/driver/driver.c

@@ -41,7 +41,7 @@ int drv_open(const struct driver *driver)
 		ret = spi_open((const struct spi *)(driver->device_driver));
 		break;
 	case DRIVER_TYPE_UART:
-//		ret = uart_open((const struct uart *)(driver->device_driver));
+		ret = uart_open((const struct uart *)(driver->device_driver));
 		break;
 	}
 	return ret;
@@ -136,7 +136,7 @@ int drv_write(const struct driver *driver, const char *buffer, int len)
 	case DRIVER_TYPE_SPI:
 		break;
 	case DRIVER_TYPE_UART:
-//		ret = uart_write((const struct uart *)(driver->device_driver), buffer, len);
+		ret = uart_write((const struct uart *)(driver->device_driver), buffer, len);
 		break;
 	}
 	return ret;