3 files changed, 8 insertions, 0 deletions

diff --git a/share/man/man4/sio.4 b/share/man/man4/sio.4
index 6e23191d0f34..672cef911771 100644
--- a/share/man/man4/sio.4
+++ b/share/man/man4/sio.4
@@ -69,6 +69,10 @@ For Hayes ESP cards:
 For PCI and PCCARD cards:
 .Cd "device sio"
 .Pp
+For dual port PCI cards that share an interrupt:
+.Cd "device sio2 at pci? flags 0x201"
+.Cd "device sio3 at pci? flags 0x201"
+.Pp
 Meaning of
 .Ar flags :
 .Bl -tag -offset indent -compact -width 0x000000
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c
index 5bbd931010f6..f9bfdd992442 100644
--- a/sys/dev/sio/sio.c
+++ b/sys/dev/sio/sio.c
@@ -580,6 +580,8 @@ static struct pci_ids pci_ids[] = {
 	{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
 	{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
 	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
+	{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
+	{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
 	/* { 0xXXXXXXXX, "Xircom Cardbus modem", 0x10 }, */
 	{ 0x00000000, NULL, 0 }
 };
diff --git a/sys/isa/sio.c b/sys/isa/sio.c
index 5bbd931010f6..f9bfdd992442 100644
--- a/sys/isa/sio.c
+++ b/sys/isa/sio.c
@@ -580,6 +580,8 @@ static struct pci_ids pci_ids[] = {
 	{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
 	{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
 	{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
+	{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
+	{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
 	/* { 0xXXXXXXXX, "Xircom Cardbus modem", 0x10 }, */
 	{ 0x00000000, NULL, 0 }
 };