Changing USB device VID PID

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I got it working with a teensy 2.0. Here are the steps I took (likely there are ways to optimize this)

Caution: Once you change PID and VID, platform.io will no longer recognize the device as a teensy and you won’t be able to reupload code with platform.io. (Work around is to use teensyduino application)

  1. Find all usb_private.h files in ~/.platform.io directory
find ~/.platformio  -type f -name usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_disk/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_hid/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_flightsim/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_serial/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_serial_hid/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/teensy/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_rawhid/usb_private.h
/Users/foobar/.platformio/packages/framework-arduinoteensy/cores/usb_midi/usb_private.h

Since I’m using a teensy, I want .platformio/packages/framework-arduinoteensy/cores/teensy/usb_private.h

Looking in that file I see conditional includes depending on what type of device it is (HID, Keyboard, joystick ect…)

#if defined(USB_SERIAL)
#include "usb_serial/usb_private.h"
#elif defined(USB_HID)
#include "usb_hid/usb_private.h"
#elif defined(USB_SERIAL_HID)
#include "usb_serial_hid/usb_private.h"
#elif defined(USB_DISK) || defined(USB_DISK_SDFLASH)
#include "usb_disk/usb_private.h"
#elif defined(USB_MIDI)
#include "usb_midi/usb_private.h"
#elif defined(USB_RAWHID)
#include "usb_rawhid/usb_private.h"
#elif defined(USB_FLIGHTSIM)
#include "usb_flightsim/usb_private.h"
#endif

I chose to set my device to a USB_SERIAL_HID. To do that I modified platform.ini to include a build flag build_flags = -D USB_SERIAL_HID

[env:teensy2]
platform = teensy
board = teensy2
framework = arduino
build_flags = -D USB_SERIAL_HID

I then manually modified usb_serial_hid/usb_private.h with the PID and VID I want

 59 //TODO: Revert these lines
 60 //#define VENDOR_ID               0x16C0
 61 //#define PRODUCT_ID              0x0487
 62 
 63 #define VENDOR_ID               0xAAAA
 64 #define PRODUCT_ID              0xBBBB

Build and upload and observe the PID and VID are now the programmed value.

I would much rather do this in a more repeatable way, but this is good enough for a proof of concept.

system_profiler SPUSBDataType (OSX)
lsusb (linux)