SYSCTL_ADD_CONST_STRING
SYSCTL_ADD_CONST_STRING(ctx, children, OID_AUTO, "if_name", CTLFLAG_RD,
SYSCTL_ADD_CONST_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "netif",
SYSCTL_ADD_CONST_STRING(&sc->sysctl_ctx,
SYSCTL_ADD_CONST_STRING(ctx_list, oid_list, OID_AUTO, "driver_version",
SYSCTL_ADD_CONST_STRING(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,
SYSCTL_ADD_CONST_STRING(NULL, SYSCTL_CHILDREN(oid), OID_AUTO,