4 files changed, 23 insertions, 0 deletions
diff --git a/libmaple/usb/usb.c b/libmaple/usb/usb.c
index 881c7f9..23cde00 100644
--- a/libmaple/usb/usb.c
+++ b/libmaple/usb/usb.c
@@ -459,6 +459,14 @@ uint8 usbGetRTS() {
   return ((line_dtr_rts & CONTROL_LINE_RTS) != 0);
 }
 
+uint8 usbIsConfigured() {
+  return (bDeviceState == CONFIGURED);
+}
+
+uint8 usbIsConnected() {
+  return (bDeviceState != UNCONNECTED);
+}  
+
 uint16 usbGetPending() {
   return countTx;
 }
diff --git a/libmaple/usb/usb.h b/libmaple/usb/usb.h
index e0d4231..ec179b1 100644
--- a/libmaple/usb/usb.h
+++ b/libmaple/usb/usb.h
@@ -57,6 +57,8 @@ typedef enum
   uint8 usbReceiveBytes(uint8* recvBuf, uint8 len);
   uint8 usbGetDTR(void);
   uint8 usbGetRTS(void);
+  uint8 usbIsConnected(void);
+  uint8 usbIsConfigured(void);
   uint16 usbGetPending(void);
 
   void usbSendHello(void);
diff --git a/wirish/usb_serial.cpp b/wirish/usb_serial.cpp
index 08cda55..c066112 100644
--- a/wirish/usb_serial.cpp
+++ b/wirish/usb_serial.cpp
@@ -103,5 +103,17 @@ uint8 USBSerial::pending(void) {
    return usbGetPending();
 }
 
+uint8 USBSerial::getDTR(void) {
+   return usbGetDTR();
+}
+
+uint8 USBSerial::getRTS(void) {
+   return usbGetRTS();
+}
+
+uint8 USBSerial::isConnected(void) {
+   return (usbIsConnected() && usbIsConfigured());
+}
+
 USBSerial SerialUSB;
 
diff --git a/wirish/usb_serial.h b/wirish/usb_serial.h
index abb362b..7c87c04 100644
--- a/wirish/usb_serial.h
+++ b/wirish/usb_serial.h
@@ -50,6 +50,7 @@ class USBSerial : public Print {
 
       uint8  getRTS();
       uint8  getDTR();
+      uint8  isConnected();
       uint8  pending();
 };