215 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in _serial_tstc()  local
219 		upriv->buf[upriv->wr_ptr++] = __serial_getc(dev);  in _serial_tstc()
220 		upriv->wr_ptr %= CONFIG_SERIAL_RX_BUFFER_SIZE;  in _serial_tstc()
223 	return upriv->rd_ptr != upriv->wr_ptr ? 1 : 0;  in _serial_tstc()
228 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in _serial_getc()  local
231 	val = upriv->buf[upriv->rd_ptr++];  in _serial_getc()
232 	upriv->rd_ptr %= CONFIG_SERIAL_RX_BUFFER_SIZE;  in _serial_getc()
385 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in serial_post_probe()  local
428 	upriv->buf = malloc(CONFIG_SERIAL_RX_BUFFER_SIZE);  in serial_post_probe()
431 	stdio_register_dev(&sdev, &upriv->sdev);  in serial_post_probe()
439 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in serial_pre_remove()  local
441 	if (stdio_deregister_dev(upriv->sdev, true))  in serial_pre_remove()