tc_3000_300_intrnull
tc_3000_300_intr[i].tci_func = tc_3000_300_intrnull;
if (tc_3000_300_intr[dev].tci_func != tc_3000_300_intrnull)
if (tc_3000_300_intr[dev].tci_func == tc_3000_300_intrnull)
tc_3000_300_intr[dev].tci_func = tc_3000_300_intrnull;
int tc_3000_300_intrnull(void *);