Arduino joystick library wont work when CDC disabled. why?

Projects Programming
1

Im trying to make my own throttle for DCS using leonardo joystick library but I'm also using DCS-BIOS. I want to disable or make my throttle disappear from COM PORT. and I found it.
just edit some code in USBCore.cpp
from this

//	DEVICE DESCRIPTOR
#define CDC_ENABLED

to this

//	DEVICE DESCRIPTOR
//#define CDC_ENABLED

but my joystick properties in usb game controller not moving at all. when i tried to un comment the CDC_ENABLED and upload it. my joystick works.

is there a way so my joystick works while my throttle do not appear in COM PORT?

2

That depends on your code and on the way your OS/application detects the joystick. The class, subclass and protocol values changes if CDC is disabled.

3

I made the following change to remove the CDC ACM port.

USBDesc.h

// Uncomment the following line or pass -DCDC_DISABLED to the compiler
// to disable CDC (serial console via USB).
// That's useful if you want to create an USB device (like an USB Boot Keyboard)
// that works even with problematic devices (like KVM switches).
// Keep in mind that with this change you'll have to use the Arduino's
// reset button to be able to flash it.
#define CDC_DISABLED

This seems to work fine. The USB CDC port (Serial) disappears. I used the JoystickMouseControl.ino example for testing.

Board package: Arduino AVR 1.8.6. Board type: Leonardo

4

yes indeed its working as I expected. mine was 1.8.13 but my USBDesc.h and USBCore.cpp is different from the arduino github. so I copied both code to both if my files.

for the next person who look for the code:
USBDesc.h
USBCore.cpp

all I did was just change both files
USBCore.cpp(comment the CDC_ENABLED)

//	DEVICE DESCRIPTOR
//#define CDC_ENABLED

USBDesc.h (uncomment the //CDC_DISABLED)

// Uncomment the following line or pass -DCDC_DISABLED to the compiler
// to disable CDC (serial console via USB).
// That's useful if you want to create an USB device (like an USB Boot Keyboard)
// that works even with problematic devices (like KVM switches).
// Keep in mind that with this change you'll have to use the Arduino's
// reset button to be able to flash it.
#define CDC_DISABLED

Thanks Ice!

and yes before I only disabled one of them(USBDesc.h and USBCore.cpp) because i dont think that my files would be the same than yours. so now it works.

Thanks Pylon!

5

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