HFC_CHAN_B1
if ((channel == HFC_CHAN_B1) && (hw->fifos[HFCUSB_B1_RX].active))
case HFC_CHAN_B1:
case HFC_CHAN_B1:
if ((channel == HFC_CHAN_B1) && (!hw->fifos[HFCUSB_B1_RX].active))
hfcsusb_stop_endpoint(hw, HFC_CHAN_B1);