-DCDC_DISABLED not working

[Phoen11xx]

Hello. I am trying to create a usb device and I need to disable the CDC so that only the hid device works.
To install the code, I use usbasp. After enabling the -DC DC_DISABLED parameter or adding define, the CRC still works and I get a hid device plus a non-working device.
Does anyone know the solution to this problem?

[per1234]

Hi @Phoen11xx. Thanks for your report. I know there has been a recent discussion about the use of this macro on Arduino Forum:

https://forum.arduino.cc/t/remove-serial-port/1123859

Is that you? I ask because that discussion contains valuable information about how the users are setting the macro (via the boards definition instead of trying to do it via the sketch code).

[Phoen11xx]

These not my forum thread. but i have exactly the same problem.

[facchinm]

The issue is very likely due to how Windows caches the USB descriptors; you can try changing the productVersion field here , replacing 0x100 with any other number, to check if it forgets the previous association.

[Phoen11xx]

I recorded a video showing this problem:
https://www.youtube.com/watch?v=9o1CELyCOsc
It doesn't look like the problem is in the cache. digitalWrite still working but mouse.move not working with CDC_DISABLED define

[Phoen11xx]

@facchinm I was wrong about the cache. I change 0x100 to 0x101 and it worked

[Phoen11xx]

Maybe replace this number with a timestamp or compilation number? there is no information about possible caching in the comments to this option