multiples usbMIDI Teensy 4.1 on the same USB HUB problem

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Baloran

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Hi all,

I'm facing a silly problem and I don't understand why.
I use teensy 4.1 in two projects with usbMIDI.
I use name.c to rename the USB interface in each project with a distinct name.
With Teensy 3.2 don't worry, if I plug the two teensy's into a USB hub, I have two midi interfaces, each with its own name...
Impossible to do the same with the 4.1, individually, it works. But as soon as I plug the second one, it imposes its name to the first one, and all Windows softwares (JUCE or Multimedia API) crash...
I tried with USBDView to clean up the drivers and instances, nothing to do....

Best regards

--
Laurent
Baloran
 
ADD :
when I change VENDOR_ID in usb_desc.h for one project and leave the old for second project , all work fine

#elif defined(USB_MIDI)
#define VENDOR_ID 0x16C1
 
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