diff --git a/src/platforms/common/cdcacm.c b/src/platforms/common/cdcacm.c
index 568d1151..ec052e6a 100644
--- a/src/platforms/common/cdcacm.c
+++ b/src/platforms/common/cdcacm.c
@@ -49,7 +49,8 @@
 #include <libopencm3/usb/cdc.h>
 
 static int configured;
-static int cdcacm_gdb_dtr = 1;
+
+static int gdb_uart_dtr = 1;
 
 static void cdcacm_set_modem_state(usbd_device *dev, uint16_t iface, uint8_t ep);
 
@@ -65,7 +66,7 @@ static enum usbd_request_return_codes gdb_uart_control_request(usbd_device *dev,
 	switch (req->bRequest) {
 	case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
 		cdcacm_set_modem_state(dev, req->wIndex, CDCACM_GDB_ENDPOINT);
-		cdcacm_gdb_dtr = req->wValue & 1;
+		gdb_uart_dtr = req->wValue & 1;
 		return USBD_REQ_HANDLED;
 	case USB_CDC_REQ_SET_LINE_CODING:
 		if (*len < sizeof(struct usb_cdc_line_coding))
@@ -107,9 +108,9 @@ int cdcacm_get_config(void)
 	return configured;
 }
 
-int cdcacm_get_dtr(void)
+int gdb_uart_get_dtr(void)
 {
-	return cdcacm_gdb_dtr;
+	return gdb_uart_dtr;
 }
 
 static void cdcacm_set_modem_state(usbd_device *dev, const uint16_t iface, const uint8_t ep)
diff --git a/src/platforms/common/cdcacm.h b/src/platforms/common/cdcacm.h
index 37df0b97..9a2f571b 100644
--- a/src/platforms/common/cdcacm.h
+++ b/src/platforms/common/cdcacm.h
@@ -33,6 +33,7 @@
 void cdcacm_set_config(usbd_device *dev, uint16_t wValue);
 /* Returns current usb configuration, or 0 if not configured. */
 int cdcacm_get_config(void);
-int cdcacm_get_dtr(void);
+
+int gdb_uart_get_dtr(void);
 
 #endif
diff --git a/src/platforms/stm32/gdb_if.c b/src/platforms/stm32/gdb_if.c
index 87d32861..c35bb978 100644
--- a/src/platforms/stm32/gdb_if.c
+++ b/src/platforms/stm32/gdb_if.c
@@ -43,7 +43,7 @@ void gdb_if_putchar(unsigned char c, int flush)
 	if(flush || (count_in == CDCACM_PACKET_SIZE)) {
 		/* Refuse to send if USB isn't configured, and
 		 * don't bother if nobody's listening */
-		if((cdcacm_get_config() != 1) || !cdcacm_get_dtr()) {
+		if((cdcacm_get_config() != 1) || !gdb_uart_get_dtr()) {
 			count_in = 0;
 			return;
 		}
@@ -105,7 +105,7 @@ unsigned char gdb_if_getchar(void)
 
 	while (!(out_ptr < count_out)) {
 		/* Detach if port closed */
-		if (!cdcacm_get_dtr()) {
+		if (!gdb_uart_get_dtr()) {
 			__WFI();
 			return 0x04;
 		}
@@ -123,7 +123,7 @@ unsigned char gdb_if_getchar_to(int timeout)
 
 	if (!(out_ptr < count_out)) do {
 		/* Detach if port closed */
-			if (!cdcacm_get_dtr()) {
+			if (!gdb_uart_get_dtr()) {
 				__WFI(); /* systick will wake up too!*/
 				return 0x04;
 			}
diff --git a/src/platforms/stm32/rtt_if.c b/src/platforms/stm32/rtt_if.c
index b6f4ccc1..0816ce7d 100644
--- a/src/platforms/stm32/rtt_if.c
+++ b/src/platforms/stm32/rtt_if.c
@@ -121,7 +121,7 @@ bool rtt_nodata()
 /* rtt target to host: write string */
 uint32_t rtt_write(const char *buf, uint32_t len)
 {
-	if (len != 0 && usbdev && cdcacm_get_config() && cdcacm_get_dtr()) {
+	if (len != 0 && usbdev && cdcacm_get_config() && gdb_uart_get_dtr()) {
 		for (uint32_t p = 0; p < len; p += CDCACM_PACKET_SIZE) {
 			uint32_t plen = MIN(CDCACM_PACKET_SIZE, len - p);
 			while(usbd_ep_write_packet(usbdev, CDCACM_UART_ENDPOINT, buf + p, plen) <= 0);
diff --git a/src/platforms/stm32/traceswodecode.c b/src/platforms/stm32/traceswodecode.c
index 3d5b0523..24ae2ff2 100644
--- a/src/platforms/stm32/traceswodecode.c
+++ b/src/platforms/stm32/traceswodecode.c
@@ -47,7 +47,7 @@ uint16_t traceswo_decode(usbd_device *usbd_dev, uint8_t addr,
 			if (swo_print) {
 				swo_buf[swo_buf_len++]=ch;
 				if (swo_buf_len == sizeof(swo_buf)) {
-					if (cdcacm_get_config() && cdcacm_get_dtr()) /* silently drop if usb not ready */
+					if (cdcacm_get_config() && gdb_uart_get_dtr()) /* silently drop if usb not ready */
 						usbd_ep_write_packet(usbd_dev, addr, swo_buf, swo_buf_len);
 					swo_buf_len=0;
 				}
diff --git a/src/platforms/tm4c/gdb_if.c b/src/platforms/tm4c/gdb_if.c
index 4238a02a..8694e7db 100644
--- a/src/platforms/tm4c/gdb_if.c
+++ b/src/platforms/tm4c/gdb_if.c
@@ -40,7 +40,7 @@ void gdb_if_putchar(unsigned char c, int flush)
 	if(flush || (count_in == CDCACM_PACKET_SIZE)) {
 		/* Refuse to send if USB isn't configured, and
 		 * don't bother if nobody's listening */
-		if((cdcacm_get_config() != 1) || !cdcacm_get_dtr()) {
+		if((cdcacm_get_config() != 1) || !gdb_uart_get_dtr()) {
 			count_in = 0;
 			return;
 		}
@@ -59,7 +59,7 @@ void gdb_usb_out_cb(usbd_device *dev, uint8_t ep)
         uint32_t count = usbd_ep_read_packet(dev, CDCACM_GDB_ENDPOINT,
                                         (uint8_t *)buf, CDCACM_PACKET_SIZE);
 
-	
+
 	uint32_t idx;
 	for (idx=0; idx<count; idx++) {
 		buffer_out[head_out++ % sizeof(buffer_out)] = buf[idx];
@@ -73,7 +73,7 @@ unsigned char gdb_if_getchar(void)
 
 	while(tail_out == head_out) {
 		/* Detach if port closed */
-		if(!cdcacm_get_dtr())
+		if(!gdb_uart_get_dtr())
 			return 0x04;
 
 		while(cdcacm_get_config() != 1);
@@ -89,7 +89,7 @@ unsigned char gdb_if_getchar_to(int timeout)
 
 	if(head_out == tail_out) do {
 		/* Detach if port closed */
-		if(!cdcacm_get_dtr())
+		if(!gdb_uart_get_dtr())
 			return 0x04;
 
 		while(cdcacm_get_config() != 1);
@@ -100,4 +100,3 @@ unsigned char gdb_if_getchar_to(int timeout)
 
 	return -1;
 }
-