diff --git a/util/superiotool/nsc.c b/util/superiotool/nsc.c
index 6226a5b825..5197cf7b2a 100644
--- a/util/superiotool/nsc.c
+++ b/util/superiotool/nsc.c
@@ -210,6 +210,53 @@ static const struct superio_registers reg_table[] = {
 		{EOT}}},
 	{0xee, "PC8741x", {
 		/* SRID[7..5] is marked as "not applicable for the PC8741x". */
+		{NOLDN, NULL,
+			{0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,
+			 0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT},
+			{0xee,0x11,0x20,MISC,MISC,MISC,0x00,NANA,0x00,MISC,
+			 0x00,RSVD,RSVD,RSVD,RSVD,RSVD,EOT}},
+		{0x0, "Floppy",
+			{0x30,0x60,0x61,0x70,0x71,0x74,0x75,0xf0,0xf1,EOT},
+			{0x00,0x03,0xf2,0x06,0x03,0x02,0x04,0x24,0x00,EOT}},
+		{0x1, "Parallel port",
+			{0x30,0x60,0x61,0x70,0x71,0x74,0x75,0xf0,EOT},
+			{0x00,0x02,0x78,0x07,0x02,0x04,0x04,0xf2,EOT}},
+		{0x2, "COM2",
+			{0x30,0x60,0x61,0x70,0x71,0x74,0x75,0xf0,EOT},
+			{0x00,0x02,0xf8,0x03,0x03,0x04,0x04,0x02,EOT}},
+		{0x3, "COM1",
+			{0x30,0x60,0x61,0x70,0x71,0x74,0x75,0xf0,EOT},
+			{0x00,0x03,0xf8,0x04,0x03,0x04,0x04,0x02,EOT}},
+		{0x4, "System wake-up control (SWC)",
+			{0x30,0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x70,
+			 0x71,0x74,0x75,EOT},
+			{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 0x03,0x04,0x04,EOT}},
+		{0x5, "Mouse",
+			{0x30,0x70,0x71,0x74,0x75,EOT},
+			{0x00,0x0c,0x02,0x04,0x04,EOT}},
+		{0x6, "Keyboard",
+			{0x30,0x60,0x61,0x62,0x63,0x70,0x71,0x74,0x75,0xf0,
+			 EOT},
+			{0x00,0x00,0x60,0x00,0x64,0x01,0x02,0x04,0x04,0x40,
+			 EOT}},
+		{0x7, "GPIO",
+			{0x30,0x60,0x61,0x70,0x71,0x74,0x75,0xf0,0xf1,0xf2,
+			 0xf3,EOT},
+			{0x00,0x00,0x00,0x00,0x03,0x04,0x04,0x00,MISC,0x01,
+			 0x00,EOT}},
+		{0xf, "X-Bus",
+			{0x30,0x60,0x61,0x70,0x71,0x74,0x75,0xf0,0xf1,0xf2,
+			 0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,
+			 EOT},
+			{0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x00,0x00,0x00,
+			 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+			 EOT}},
+		{0x10, "Real-time clock (RTC)",
+			{0x30,0x60,0x61,0x62,0x63,0x70,0x71,0x74,0x75,0xf0,
+			 0xf1,0xf2,0xf3,EOT},
+			{0x00,0x00,0x70,0x00,0x72,0x08,0x00,0x04,0x04,0x00,
+			 0x00,0x00,0x00,EOT}},
 		{EOT}}},
 	{0xf0, "PC87372", {
 		{EOT}}},
diff --git a/util/superiotool/superiotool.h b/util/superiotool/superiotool.h
index ec0a55903b..e7c4e2363b 100644
--- a/util/superiotool/superiotool.h
+++ b/util/superiotool/superiotool.h
@@ -47,7 +47,7 @@ and print its vendor, name, ID, revision, and config port.\n"
 #define RSVD		-4		/* Reserved */
 #define MISC		-5		/* Needs special comment in output */
 #define MAXNAMELEN	30		/* Maximum Name Length */
-#define MAXLDN		0xf		/* Biggest LDN */
+#define MAXLDN		0x10		/* Biggest LDN */
 #define LDNSIZE		(MAXLDN + 3)	/* Biggest LDN + 0 + NOLDN + EOT */
 #define MAXNUMIDX	70		/* Maximum number of indexes */
 #define IDXSIZE 	(MAXNUMIDX + 1)