PL2303_PIPE_IDLE
plp->pl_bulkin_state = PL2303_PIPE_IDLE;
plp->pl_bulkout_state = PL2303_PIPE_IDLE;
plp->pl_bulkin_state = PL2303_PIPE_IDLE;
plp->pl_bulkout_state = PL2303_PIPE_IDLE;
plp->pl_bulkin_state = PL2303_PIPE_IDLE;
if (plp->pl_bulkout_state != PL2303_PIPE_IDLE) {
plp->pl_bulkout_state = PL2303_PIPE_IDLE;