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