udc_protocol_cmd_r
flo = (u16) udc_protocol_cmd_r(udc, DAT_RD_FRAME);
fhi = (u16) udc_protocol_cmd_r(udc, DAT_RD_FRAME);
tmp = udc_protocol_cmd_r(udc, DAT_GET_DEV_STAT);
tmp = udc_protocol_cmd_r(udc, DAT_SEL_EP(ep->hwep_num));
tmp = udc_protocol_cmd_r(udc, DAT_RD_ERR_STAT);
return udc_protocol_cmd_r(udc, DAT_SEL_EP_CLRI(hwep));