SERIAL_EV_DSR     384 drivers/usb/serial/mxuport.c 	    (SERIAL_EV_CTS | SERIAL_EV_DSR | SERIAL_EV_RLSD)) {
SERIAL_EV_DSR     391 drivers/usb/serial/mxuport.c 		if (rcv_msr_event & SERIAL_EV_DSR) {