diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index d176b3bd551c..e17a71e0e864 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -611,6 +611,7 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08/jr-ao",	/*  cio-das08-jr-ao.pdf */
 		.bustype = isa,
+		.is_jr = true,
 		.ai = das08_ai_rinsn,
 		.ai_nbits = 12,
 		.ai_pg = das08_pg_none,
@@ -628,6 +629,7 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08jr-16-ao",	/*  cio-das08jr-16-ao.pdf */
 		.bustype = isa,
+		.is_jr = true,
 		.ai = das08_ai_rinsn,
 		.ai_nbits = 16,
 		.ai_pg = das08_pg_none,
@@ -670,6 +672,7 @@ static const struct das08_board_struct das08_boards[] = {
 	{
 		.name = "das08jr/16",
 		.bustype = isa,
+		.is_jr = true,
 		.ai = das08_ai_rinsn,
 		.ai_nbits = 16,
 		.ai_pg = das08_pg_none,
diff --git a/drivers/staging/comedi/drivers/das08.h b/drivers/staging/comedi/drivers/das08.h
index 320f56aa3148..5e005302161b 100644
--- a/drivers/staging/comedi/drivers/das08.h
+++ b/drivers/staging/comedi/drivers/das08.h
@@ -35,6 +35,7 @@ struct das08_board_struct {
 	const char *name;
 	unsigned int id;	/*  id for pci/pcmcia boards */
 	enum das08_bustype bustype;
+	bool is_jr;		/* true for 'JR' boards */
 	void *ai;
 	unsigned int ai_nbits;
 	enum das08_lrange ai_pg;