CFXFER
target_settings = (sc->device_flags[i] & CFXFER) << 4;
user_tinfo->period = (sc->device_flags[targ] & CFXFER);
if(ultra && (flags & CFXFER) == 0x04) {
flags &= ~CFXFER;
scsirate = (flags & CFXFER) | (ultra ? 0x8 : 0);
scsirate = (flags & CFXFER) << 4;
if ((sc->device_flags[i] & CFXFER) == 0x04
sc->device_flags[i] &= ~CFXFER;
scsirate = (sc->device_flags[i] & CFXFER)
scsirate = (sc->device_flags[i] & CFXFER) << 4;