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changing usb VID/PID

Posted: Tue Jul 05, 2022 3:37 pm
by kpwnkpwn
Hi,
i am using a dev kit, ESP32-WRROM-32D, which i programm using VSCode + PlattformIO + espressif IDF. I can upload and run code just fine.
I am trying to change the USB PID/VID and serial number of my chip. I assume it its possible, i just dont know how its done. Any pointers?

Re: changing usb VID/PID

Posted: Wed Jul 06, 2022 12:44 am
by ESP_Sprite
An ESP32-WROOM-32D does not have an ESP with internal USB, so USB is provided by a (if memory serves) CP2102 chip. You should look into reprogramming that chip if you want to change its VID/PID.

Re: changing usb VID/PID

Posted: Wed Jul 06, 2022 12:01 pm
by kpwnkpwn
Thanks, i just took a close look at my esp board and yes there is a silabs CP2102 on there. I will have to check if and how i can reprogramm that one.

Re: changing usb VID/PID

Posted: Thu Jul 07, 2022 1:50 am
by chegewara
Maybe stupid question, but why do you want to change VID/PID?
When you do it then most likely native drivers wont recognize device.