diff --git a/mtac_mfser.c b/mtac_mfser.c
index d8548cb..fd7b0b6 100644
--- a/mtac_mfser.c
+++ b/mtac_mfser.c
@@ -1,4 +1,4 @@
-#define DRIVER_VERSION  "v1.1.1"
+#define DRIVER_VERSION  "v1.2.0"
 #define DRIVER_AUTHOR   "Multi-Tech"
 #define DRIVER_DESC "MTS Multi-Fuction Serial Accessory Card"
 #define DRIVER_NAME "mtac-mfser"
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/mtac.h>
 #include <linux/mts_io.h>
+#include <linux/mts_io_module.h>
 #ifdef TI43X
 #include <linux/ti43x_gpio.h>
 #endif
@@ -54,6 +55,86 @@ static struct gpio_pin gpio_pins_mtac_mfser[] = {
 			.label = "ap1-gpio4",
 		}
 	},
+
+	// gpio pins for Accessory Card 2
+	{
+		.name = "AP2_GPIO1",
+		.pin = {
+			.gpio = M_AP2_GPIO1,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap2-gpio1",
+		},
+		.active_low = 1,
+	},
+	{
+		.name = "AP2_GPIO2",
+		.pin = {
+			.gpio = M_AP2_GPIO2,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap2-gpio2",
+		}
+	},
+	{
+		.name = "AP2_GPIO3",
+		.pin = {
+			.gpio = M_AP2_GPIO3,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap2-gpio3",
+		}
+	},
+	{
+		.name = "AP2_GPIO4",
+		.pin = {
+			.gpio = M_AP2_GPIO4,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap2-gpio4",
+		}
+	},
+        { },
+};
+static struct gpio_pin gpio_pins_mtac_mfser_RI[] = {
+	// gpio pins for Accessory Card 1
+	{
+		.name = "AP1_GPIO1",
+		.pin = {
+			.gpio = M_AP1_GPIO1,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap1-gpio1",
+		},
+		.active_low = 1,
+	},
+	{
+		.name = "AP1_GPIO2",
+		.pin = {
+			.gpio = M_AP1_GPIO2,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap1-gpio2",
+		}
+	},
+	{
+		.name = "AP1_GPIO3",
+		.pin = {
+			.gpio = M_AP1_GPIO3,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap1-gpio3",
+		}
+	},
+	{
+		.name = "AP1_GPIO4",
+		.pin = {
+			.gpio = M_AP1_GPIO4,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap1-gpio4",
+		}
+	},
+	{  // MTCDT-0.4 only
+		.name = "AP1_ENABLE_TX_ENABLE",
+		.pin = {
+			.gpio = AT91_PIN_PC31,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap1-enable-tx-enable",
+		}
+	},
 	
 
 	// gpio pins for Accessory Card 2
@@ -90,7 +171,15 @@ static struct gpio_pin gpio_pins_mtac_mfser[] = {
 			.label = "ap2-gpio4",
 		}
 	},
-	{ },
+	{  // MTCDT-0.4 only
+		.name = "AP2_ENABLE_TX_ENABLE",
+		.pin = {
+			.gpio = AT91_PIN_PC30,
+			.flags = GPIOF_OUT_INIT_LOW,
+			.label = "ap2-enable-tx-enable",
+		}
+	},
+        { },
 };
 
 static char* mfser_gpio_pin_name_by_attr_name(const char* name, int port) {
@@ -251,8 +340,9 @@ static ssize_t mts_attr_store_mfser_mode(struct kobject *kobj,
 // 1 product-id
 // 1 device-id
 // 1 hw-version
+// 1 enable_tx_enable
 // NULL
-static size_t ap_mfser_attrs_size = 8;
+static size_t ap_mfser_attrs_size = 9;
 
 static bool mfser_setup(enum ap port) {
 	int i;
@@ -264,6 +354,7 @@ static bool mfser_setup(enum ap port) {
 	struct kobj_attribute* attr;
 	struct attribute **attrs;
 	struct kobject *subdir;
+        char *tmp;
 
 	log_info("loading MFSER accessory card in port %d", port);
 
@@ -273,8 +364,10 @@ static bool mfser_setup(enum ap port) {
 		log_error("kobject_create_and_add for MFSER in port %d failed", port);
 		return false;
 	}
-
-	mtac_set_port_pins(port_index,gpio_pins_mtac_mfser,subdir);
+        if ((tmp=HW_VERSION_MTCDT_0_2),strncmp(mts_get_hw_version(), tmp, strlen(tmp)) == 0)
+            mtac_set_port_pins(port_index,gpio_pins_mtac_mfser_RI,subdir);
+        else
+            mtac_set_port_pins(port_index,gpio_pins_mtac_mfser,subdir);
 
 	// create the link to the apX directory this card is in
 	// if we're in the first slot, we get plain "mfser"
@@ -334,6 +427,18 @@ static bool mfser_setup(enum ap port) {
 	attr->store = mtac_attr_store_ap_gpio_pin;
 	attrs[index++] = &attr->attr;
 
+        if ((tmp=HW_VERSION_MTCDT_0_2),strncmp(mts_get_hw_version(), tmp, strlen(tmp)) == 0) {
+            sprintf(buf, "enable-tx-enable");
+            attr = mtac_create_attribute(buf, MTS_ATTR_MODE_RW);
+            if (! attr) {
+                    log_error("failed to create attribute [%s] for MFSER in port %d", buf, port);
+                    return false;
+            }
+            attr->show = mtac_attr_show_ap_gpio_pin;
+            attr->store = mtac_attr_store_ap_gpio_pin;
+            attrs[index++] = &attr->attr;
+        }
+
 	// add attributes for eeprom contents
 	if (! mtac_add_product_info_attributes(port, attrs, &index)) {
 		log_error("failed to add product info attributes for MFSER in port %d", port);