INTR_ACK_REG_B    772 dev/ic/smc91cxx.c 		bus_space_write_1(bst, bsh, INTR_ACK_REG_B, IM_RX_OVRN_INT);
INTR_ACK_REG_B    816 dev/ic/smc91cxx.c 		bus_space_write_1(bst, bsh, INTR_ACK_REG_B, IM_TX_INT);
INTR_ACK_REG_B    875 dev/ic/smc91cxx.c 		bus_space_write_1(bst, bsh, INTR_ACK_REG_B, IM_TX_EMPTY_INT);