Merge pull request #749 from p-j-b/fix-hang-windows-adafruit-floppy-g…

…reaseweazle Set DTR after calling SetCommState
davidgiven · May 1, 2024 · f0b1b61 · f0b1b61
2 parents c064aa7 + c2248c7
commit f0b1b61
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/usb/serial.cc b/lib/usb/serial.cc
@@ -97,6 +97,12 @@ class SerialPortImpl : public SerialPort
             .Parity = NOPARITY,
             .StopBits = ONESTOPBIT};
         SetCommState(_handle, &dcb);
+
+        if (!EscapeCommFunction(_handle, CLRDTR))
+            error("Couldn't clear DTR: {}", get_last_error_string());
+        Sleep(200);
+        if (!EscapeCommFunction(_handle, SETDTR))
+            error("Couldn't set DTR: {}", get_last_error_string());
     }
 
 private: