HOST_CTRL_IO
outb(0x0, HOST_CTRL_IO(io_base));
outb(0x3, HOST_CTRL_IO(io_base));
if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0)
if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) {
if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0)