Symbol: READAHEAD_IS_EMPTY
sys/arch/arm/imx/imxuart.c
2101
#define READAHEAD_IS_EMPTY() (imxuart_readahead_in==imxuart_readahead_out)
sys/arch/arm/xilinx/zynq_uart.c
1877
#define READAHEAD_IS_EMPTY() (zynquart_readahead_in==zynquart_readahead_out)