HW_IOSTATS
CTL_HW, HW_IOSTATS, CTL_EOL);
mib[1] = HW_IOSTATS;
mib[1] = HW_IOSTATS;
mib[1] = HW_IOSTATS; /* ... above, but be safe... */
static const int mib[3] = { CTL_HW, HW_IOSTATS, sizeof(*data) };