HFC_CHAN_B2
if ((channel == HFC_CHAN_B2) && (hw->fifos[HFCUSB_B2_RX].active))
case HFC_CHAN_B2:
case HFC_CHAN_B2:
if ((channel == HFC_CHAN_B2) && (!hw->fifos[HFCUSB_B2_RX].active))
hfcsusb_stop_endpoint(hw, HFC_CHAN_B2);