HelenOS sources

UFCON_TX_FIFO_TLEVEL_EMPTY  131 kernel/genarch/src/drivers/s3c24xx/uart.c 	    UFCON_TX_FIFO_TLEVEL_EMPTY | UFCON_RX_FIFO_TLEVEL_1B);
UFCON_TX_FIFO_TLEVEL_EMPTY  188 uspace/srv/hw/char/s3c24xx_uart/s3c24xx_uart.c 	    UFCON_TX_FIFO_TLEVEL_EMPTY | UFCON_RX_FIFO_TLEVEL_1B);