Symbol: ULSR_TXRDY
sys/dev/usb/serial/uftdi.c
1319
lsr &= ~(ULSR_TXRDY | ULSR_TSRE);
sys/dev/usb/serial/usb_serial.c
1420
const uint8_t txidle = ULSR_TXRDY | ULSR_TSRE;
sys/dev/usb/serial/uvscom.c
458
sc->sc_lsr |= ULSR_TXRDY;