RP2_UART_CTL_FLUSH_TX_m 514 drivers/tty/serial/rp2.c RP2_UART_CTL_FLUSH_RX_m | RP2_UART_CTL_FLUSH_TX_m); RP2_UART_CTL_FLUSH_TX_m 518 drivers/tty/serial/rp2.c RP2_UART_CTL_FLUSH_RX_m | RP2_UART_CTL_FLUSH_TX_m);