changing usb VID/PID

kpwnkpwn
Posts: 2
Joined: Tue Jul 05, 2022 3:32 pm

changing usb VID/PID

Postby kpwnkpwn » Tue Jul 05, 2022 3:37 pm

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?

ESP_Sprite
Posts: 8921
Joined: Thu Nov 26, 2015 4:08 am

Re: changing usb VID/PID

Postby ESP_Sprite » Wed Jul 06, 2022 12:44 am

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.

kpwnkpwn
Posts: 2
Joined: Tue Jul 05, 2022 3:32 pm

Re: changing usb VID/PID

Postby kpwnkpwn » Wed Jul 06, 2022 12:01 pm

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.

chegewara
Posts: 2207
Joined: Wed Jun 14, 2017 9:00 pm

Re: changing usb VID/PID

Postby chegewara » Thu Jul 07, 2022 1:50 am

Maybe stupid question, but why do you want to change VID/PID?
When you do it then most likely native drivers wont recognize device.

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