Symbol: IER_EMSC
sys/dev/serial/sio/sio.c
1249
IER_ERXRDY | IER_ERLS | IER_EMSC);
sys/dev/serial/sio/sio.c
1397
| IER_EMSC);
sys/dev/serial/sio/sio.c
1400
| IER_ERLS | IER_EMSC);