RP2_TXRX_CTL_LOOP_m 302 drivers/tty/serial/rp2.c RP2_TXRX_CTL_DTR_m | RP2_TXRX_CTL_RTS_m | RP2_TXRX_CTL_LOOP_m, RP2_TXRX_CTL_LOOP_m 305 drivers/tty/serial/rp2.c ((mctrl & TIOCM_LOOP) ? RP2_TXRX_CTL_LOOP_m : 0));