Symbol: DR_RX_FIFO_EMPTY
sys/dev/uart/uart_dev_lowrisc.c
117
if (GETREG(bas, UART_DR) & DR_RX_FIFO_EMPTY)
sys/dev/uart/uart_dev_lowrisc.c
274
if ((GETREG(bas, UART_DR) & DR_RX_FIFO_EMPTY) == 0)
sys/dev/uart/uart_dev_lowrisc.c
336
} while ((reg & DR_RX_FIFO_EMPTY) == 0);