MLB_USIO_REG_SSR
if (readb(port->membase + MLB_USIO_REG_SSR) & MLB_USIO_SSR_TBI)
status = readb(port->membase + MLB_USIO_REG_SSR);
writeb(readb(port->membase + MLB_USIO_REG_SSR) |
port->membase + MLB_USIO_REG_SSR);
if (readb(port->membase + MLB_USIO_REG_SSR) & MLB_USIO_SSR_TBI)
return (readb(port->membase + MLB_USIO_REG_SSR) & MLB_USIO_SSR_TBI) ?
writeb(MLB_USIO_SSR_REC, port->membase + MLB_USIO_REG_SSR);
writeb(MLB_USIO_SSR_REC, port->membase + MLB_USIO_REG_SSR);
while (!(readb(port->membase + MLB_USIO_REG_SSR) & MLB_USIO_SSR_TDRE))