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