FWBUSRESET
if (rb->fc->status == FWBUSRESET) {
fc->status = FWBUSRESET;
if (fc->status != FWBUSRESET)
if (err == EBUSY && fc->status != FWBUSRESET) {
if (fc->status == FWBUSRESET)
if (sc->fc.status != FWBUSRESET)