DCMD_ENDIRQEN
if (desc->desc.dcmd & DCMD_ENDIRQEN) {
new->desc.dcmd |= DCMD_ENDIRQEN;
new->desc.dcmd |= DCMD_ENDIRQEN;
new->desc.dcmd = (chan->dcmd | DCMD_ENDIRQEN |
if (cyclic || !(sw->desc.dcmd & DCMD_ENDIRQEN))