ILL_CAPAB_DLD_POLL
ill->ill_capabilities |= ILL_CAPAB_DLD_POLL;
if ((ill->ill_capabilities & ILL_CAPAB_DLD_POLL) != 0) {
ill->ill_capabilities &= ~ILL_CAPAB_DLD_POLL;
(ILL_CAPAB_DLD | ILL_CAPAB_DLD_POLL | ILL_CAPAB_DLD_DIRECT)));