203 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in _serial_tstc()  local
207 		upriv->buf[upriv->wr_ptr++] = __serial_getc(dev);  in _serial_tstc()
208 		upriv->wr_ptr %= CONFIG_SERIAL_RX_BUFFER_SIZE;  in _serial_tstc()
211 	return upriv->rd_ptr != upriv->wr_ptr ? 1 : 0;  in _serial_tstc()
216 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in _serial_getc()  local
219 	val = upriv->buf[upriv->rd_ptr++];  in _serial_getc()
220 	upriv->rd_ptr %= CONFIG_SERIAL_RX_BUFFER_SIZE;  in _serial_getc()
441 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in serial_post_probe()  local
484 	upriv->buf = malloc(CONFIG_SERIAL_RX_BUFFER_SIZE);  in serial_post_probe()
487 	stdio_register_dev(&sdev, &upriv->sdev);  in serial_post_probe()
495 	struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);  in serial_pre_remove()  local
497 	if (stdio_deregister_dev(upriv->sdev, true))  in serial_pre_remove()