diff -pNaru5 driver/2.6.27.orig/dgrp_driver.c driver/2.6.27/dgrp_driver.c
--- driver/2.6.27.orig/dgrp_driver.c	2020-01-28 12:01:10.000000000 -0500
+++ driver/2.6.27/dgrp_driver.c	2021-06-29 19:07:04.558964855 -0400
@@ -58,12 +58,13 @@ static char *version = DIGI_VERSION;
 MODULE_LICENSE("GPL");
 #endif
 
 MODULE_AUTHOR("Digi International, http://www.digi.com");
 MODULE_DESCRIPTION("RealPort driver for Digi's ethernet-based serial connectivity product line");
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5,12,0)
 MODULE_SUPPORTED_DEVICE("dgrp");
-
+#endif
 
 /*
  * insmod command line overrideable parameters
  *
  * NOTE: we use a set of macros to create the variables, which allows