UDEV_NAMEUNIT
nvlist_add_string(di, SNDST_DSPS_NAMEUNIT, UDEV_NAMEUNIT);
if (strcmp(str, UDEV_NAMEUNIT) == 0)
atf_tc_fail("userland device %s not found", UDEV_NAMEUNIT);
ATF_CHECK(strcmp(str, UDEV_NAMEUNIT) == 0);