/* Check if USART is ready to send next byte.  */
bool _usart_async_is_byte_sent(const struct _usart_async_device *const device)
/* Check if USART is ready to send next byte.  */
bool _usart_async_is_byte_sent(const struct _usart_async_device *const device)
{
	ASSERT(device);
	return hri_usart_get_US_CSR_TXRDY_bit(device->hw);
}